Alan´C Evil riddles and the answers #21 to …

Current ranking: ( last updated 27.4.13)

15 Sissel
16 Kelda
14 Talla
9 KarenZ
4 Ursula
3 Chyphria
3 Henri le Revenant
3 Newby
2,5 Diana
2 Sherine
2 jeannie
1 GeoLurking
1 lughduniese
1 Sa´ke
1 purohueso745
1 UKViggen
1 IngeB
1 Carl
2 Spica
1 Granyia

Alans (maybe – hopefully NOT) last riddle went in on Alaid: Part 2 – rising from the sea and 2 riddles! Author UKViggen, April 26th.

My true dusky identity was hidden! My secret lies in my blackness! Confused?

What am I?
Who are my relatives?
Where can I be found?

Riddle # 35 went in on a sunday! Sunday Summary and a RIDDLE! Author Spica, April 21st.

 It’s sad, but because he can’t wear me, poor old Uisdean has to stand by the table naked!
What is my name?
What am I and of what am I made?

Answers:The Kilt Rock is so named as it has the appearance of a kilt. It is formed of vertical black basalt columns (the folds) with intruded sills of dolerite (forming the tartan pattern).

Winners: 3 Kelda and an honorary mention for Newby who was just a few seconds slower.

Riddle # 34 was presented on Activity update around the world, Author El Nathan, April 12th.

I shan’t beat about the bush – a real spiny subject this, but at least you wouldn’t need a tv aerial!

What am I?
What are my special properties?

The Answer was Ulexit:

Graniya: “Gigantic hunks of Ulexite are found in the form of fibrous, compact veins. When polished, these specimens become the well-known “Television Stone” or “TV Stone” sold to amateur collectors. The optical effect exhibited by Television Stone is caused by each of its individual fibers acting as fiber-optic cables, transmitting light from one surface to the other. Since all the fibers are parallel and compacted together, any image at below is transmitted through each crystal fiber to the top surface. For this effect to be seen, the specimen must be polished with smooth surfaces. Fibrous Ulexite bundles can also be carved into cabochons that display strong chatoyancy. However, due to its low hardness, it is unsuitable for gem use.

Alan C: “Well, ’tis obvious that our Granyia is well read-up on AA Milne!
Winnie the Pooh fell into a gorse bush honey hunting
gorse is genus Ulex – the prckly subject – so we have Ulexite!! DING!!!
Ulexite (NaCa hydroxyborate) – nickname TV Mineral from optics c/f fibre optic cables

Graniya had not read AA Milne but still got the right answer. 😉

April 6th finally saw the return of Alans Evil Riddles. Riddle #33: Langjökull quaking and NTV Riddle and the return of Alan’s Evil Riddle.

All this stone writing could really give printers the bird!
For a change, 3 alternative answers, so what are they?

Answers: The Solnhofen Lithographic Limestone Group in Bavaria.
Reason: This rock is used to make lithographic plates for printing. Lithograph means ‘stone writing’. The very first bird, called Archeopteryx Lithographica, was found as a fossil in this limestone bed.
Graphic granite (Hebraic granite; Runite > and, but what the bird has to do with it escapes me – or is it called crow feet granite somewhere in the world?
Graphic granite is a granitic pegmatite that has crystals of gray quartz imbedded in white or pink microcline felspar in such a manner that they resemble cuneiform* writing, which would show up best in the polished rock.
There is a paper “On the origin of graphic granite” by Philip M. Fenn:
The name graptolite comes from the Greek graptos, meaning “written”, and lithos, meaning “rock”

Winners: Talla, Granyia, Spica

Alan´s Evil Riddle #32 was published in “And once again the Sheepy Dalek Bar is open
You’ve heard of old age and ice age, so where would old french sausages fit in?
2 points: identify and description/origin




Answers: Boudinage,  ice + age, old + age and Boudin + age
Winner: Talla, 2 points.
More info:

Riddle #31 went in on Friday Roundup Wk 4, Author Spica, February 1st.

One of bal maidens banes, named for oggie land be I!!

A) What’s my name?
B) Hereabouts was I particularly important – where more precisely?
C) Why a bane?

Answers and Winners: Newby bagged all 3 points
Cornubite. The name is from Cornubia, the medieval Latin name for Cornwall and Corwall being Oggieland!
Mindat on Cornubite

Alan´s Evil Riddle #30! went in on Sheepy Dalek, Updates and Riddles!

If you’re sitting in the park
and you lose your whisky in the dark………..

It’s your own fault, you should have cut it with me!!

A) What am I?
B) In what am I found?

Winners and answers:
Kelda: Sodalite – glows in the dark. Whisky and soda? Occurring typically in massive form, sodalite is found as vein fillings in plutonic igneous rocks such as nepheline syenites. It is associated with other minerals typical of undersaturated environments, namely leucite, cancrinite and natrolite. Other associated minerals include nepheline, titanian andradite, aegirine, microcline, sanidine, albite, calcite, fluorite, ankerite and baryte.

Alan´s Evil Riddle # 29 was published on Sheepy Dalek and 2 riddles., January 18th. :

Barnes-Wallis may have got an idea from my little helpers to put a shine on my 3 faces!

What am I?
By what is the process known?

Answers and winners:
1 Sherine, 1 Kilgarrah ( for saltation)  plus 1/2 to Diana for getting annoyed by Alan!
Wikipedia Info
Earth Science info

Evil Riddle #29 went in on Volcanic Mishaps 2: Mono Lake, California. Author Schteve, January 3rd. 2013

Ladies beware! If you have badly fitting undies, you may find me!!

What am I?
What are my origins?
2 points
I hope you ladies aren’t offended by this one 

Answers and Winner: Quote Alan”: I think I’ll give a point to Sissel, this one is perhaps too obscure !
refer Strain Slip Cleavage!
In a nutshell, a second phase (or further) foliation superimposed on an earlier, existing slaty cleavage”

Riddle #28 went in on Last Sheepy Dalek weekend of 2012!  

Given that we are in the Milky Way galaxy and Galaxy is a ‘choccy’ brand, I suppose it’s obvious the Moon really could be made of cheese!!

What am I?
From what am I derived?
2 points available

Winner:  Sissel have a box of choccies!
Answer: Moonmilk!
see pictures of Nothe Clay, about 15% down from start

Riddle #28 went in on Hurray, it’s DOOMSDAY!

You may like a silver coin in the christmas pudding, but you’d hate to find this in an apple pie.

Answers: Anthophyllite
Winners: Sherine

Alans evil riddle!! #27 went in on  Ruminarian III – Holey Musings (calderas) Author GeoLurking, December 14th.

This old girlie apple on a fence, could be a great tragedy!
What am I?
What tragedy?

2 dings / 2 points.

Winner: jeannie 2 points.
Answers: KT Boundary mass extinction 

Katy apple = KT the old name for the Cretaceous/Tertiary boundary (=fence)
Plus the massextinction=tragedy
Ranking for Alan´s Evil Riddles

Alans evil riddle!! #26? went in on  A Tube’s Tale: Part 1 – formation Author UKViggen, November 30th.

Dead straight, this one ‘ll stick to you!

What am I?
My composition?
Where am I found?

Answers ( no Winners this time around)

a rare lead secondary mineral
dead straight=plumb
stick to you=the gum(mite) bit
full details in Mindat 

Alan´s evil riddle # 25 went in on The Taupo Volcanic Zone – Part I by Bruce Stout on November 16th.
This might sound fishy, but if Britain had a Jurassic Park, you’d find me near the top and the bottom! I’ll bet you couldn’t turn me into wood either!

What am I?
What am I found in?
Who are my bed-mates?

Answers: Quote:
“So far only 1 ding for Talla for correctly spotting Roach Stone Bed, Portlandian Stage
Sissel has spotted one of my ‘bed mates’, Titanites
“I’m Aptyxiella portlandica, the Portland Screw . Y’ see y’d have a job to turn me into wood!!!
My bed mates, cos they can be found in the Roach, are ‘osses ‘eds, and Titanites – I’ve seen one 6ft/2m across!! You could have had saurian footprints as well here !”

Winners: Talla 1, Sissel 2

The Evil Riddle #24 came in as an update to GeoLurkings post Sleeper Fish… A look at the Taal and Laguna de Bay setting. on November 9th
Friday less the ‘y’ = Frida = Anni-frid Lyngstad (of my No 1 group ABBA!) now married to an aristocrat and titled Her Serene Highness
ABBA had a song FERNANDO in which a lyric refers to a ‘Starry Night’ featuring Frida
“Can you hear the drums Fernando?
I remember long ago another starry night like this”

Winners: Geolurking, ( for correctly stumbling over “Her serene highness” Frida Lyngstad) and Talla for naming Fernandinite and Corvusite.

Merriam Webster Quote: a mineral consisting of a massive dull green hydrous calcium vanadyl vanadate.


Both images from

Corvus, the raven, constellation.

Image Wikipedia

Corvus is a small constellation sitting on top of Hydra next to Crater. There are several myths explaining how it ended up as a heavenly body, the most common is. A raven was supposed to get water for the greek god Apollo but got distracted eating figs. He later claimed having been unable to reach the well because of a snake which it held in it´s talons as a proof. Apollo immediately saw the lie and flung the raven, the snake and the cup into heaven, where they formed constellations. As punishment for the raven the cup is without it´s reach so it has to stay forever thirsty.

I had to add this part, because Corvus contains an asterism called Spica´s Spanker or Spica´s Sail.

Riddle #24 was published on Friday post Author Spica, November 2nd.

If I am πrl then my cousins are +/- me!
What am I?
What do we look like?
What is our origin?



Answers:Kelda :Cone-in-cone structures in limestone.
Cone-in-cone structures are secondary sedimentary structures that form in association with deeper burial and diagenesis. They consist of concentric inter-bedded cones of calcite or more rarely gypsum, siderite or pyrite. Although several mechanisms may be responsible for the formation of cone-in-cone structures, displacive crystal mechanism is preferred. It accounts for the most uniform and consistent explanation of growth and why cone-in-cone can occur with such variable composition.
Cone-in-cone structures are identifiable by their distinctive conical appearance. They are composed of concentric cones nested inside each other. The actual composition of the cones is variable and dependent on the environment in which they were formed, with the majority of the cone-in-cone structures being composed of calcite with thin layers of clay between cones. There are also, more rarely, structures composed of siderite, gypsum, pyrite. There are also some instances of cone-in-cone occurring within coals. Often the cone-in-cone will be found as features of calcite layers within a shale., and rarely within a dedolomite (calcitized dolomite)
Winners: Kelda 3 points

Riddle #23 was published on A Volcanic ‘Grand Tour’ Part 1 by UKViggen on October 26th.

We are as peas in a pod, head to tail, but to see us we need to be extinct!

1) What feature am I/we? 
2) Where will you see me and what is extinct?
3) In what are we commonly found?

1) Polysynthetic or repeat twinning in a mineral along the c-crystallographic axis.
2) Under a microscope on a thin section; extinction refers to effect of darkening of the mineral under crossed polars when the transmitted light through the mineral slice is perpendicular to the polarised light direction, Repeat twinning gives striped effect from crystals being consecutively ‘right-way-up and upside down’
3) Best seen in plagioclase feldspars.
Winners: Diana, Kelda, Sissel, IngeB .

Riddle #22 was published on Friday riddles
Being a surgeon, the old man showed me how to put maps together!
Who are ‘we’?
Where am I found?
How old am I?

Answers: Kelda says:October 19, 2012 at 23:42 Lapetus Suture – Lapetus was the father of Atlas. The Niarbyl Fault is an exposed section of the Iapetus Suture as it crosses through the Irish Sea. It is readily visible in present-day Niarbyl on the southwest coast of Isle of Man. The fault is manifested by two major rock groups which abut each other, both deposited by their respective, aforementioned continents – the Manx Group to the south-east and the Dalby Group to the north-west.[3] The Niarbyl fault is evidence of two paleocontinents colliding: Avalonia on which present-day England is located and Laurentia which contains both present-day North America and Scotland. The fault is visible close to the shoreline downhill from the Niarbyl Cafe and Visitor Centre in Niarbyl.
… and it’s 420 million years old.
Winners: Kelda 3.

Riddle #21 was posted in

Sakura-jima and a riddle!

Ruddy cephalopods – when they get angry, they come out in lumps!
What am I?
Where am I found?
How was I formed? 

Answers: Ammonitico Rosso
Red, nodular and marly limestones (Ammonitico Rosso, Knollenkalke) are a stratigraphically condensed pelagic facies widely distributed in the Alpine-Mediterranean Jurassic. The rock comprises lime-rich nodules set in a darker red marly matrix: nodule-rich and marl-rich layers generally alternate. Previous authors have related the nodular structure to irregular solution of a deep-marine calcareous sea-bottom.
Winners: KarenZ 3;


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