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 Post subject: Fieldspar?
PostPosted: Thu Feb 20, 2014 11:47 pm 
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Joined: Thu Feb 20, 2014 3:41 pm
Posts: 49
Location: Wyoming USA
Can I rule this out as quartz?
It has not so perfect cleavage.
Fieldspar?
Diamond?
I also have other cool stones.
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 Post subject: Re: Fieldspar?
PostPosted: Fri Feb 21, 2014 3:43 am 
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Joined: Sun Oct 16, 2005 12:42 pm
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Location: Ho Chi Minh City, Vietnam
Hard to rule anything out from the photo.

How are you coming to the conclusion about the cleavage?


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 Post subject: Re: Fieldspar?
PostPosted: Fri Feb 21, 2014 11:27 am 
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Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21602
Location: San Francisco
There are several colorless minerals. Here is a partial alphabetical list.

adamite

afghanite

albite

analcime

andesine

anglesite

anhydrite

anorthite

anorthoclase

apatite

apophyllite

aragonite

barite

beryl

borax

bytownite

calcite

carletonite

celestine

celsian

cerussite

chabazite

chalcedony

coesite

colemanite

corundum

danburite

diamond

diaspore

diopside

dolomite

elbaite

epistilbite

epsomite

euclase

fluorite

garnet

gibbsite

glauberite

gmelinite

goosecreekite

grossular

gypsum

halite

hemimorphite

heulandite

ice

kernite

kyanite

laumontite

leucite

liddicoatite

magnesite

marialite

meionite

melanophlogite

mesolite

mimetite

muscovite

natrolite

nepheline

oligoclase

olivine

opal

orthoclase

pectolite

phenakite

phosgenite

plagioclase

prehnite

quartz

sanidine

scapolite

scheelite

scolecite

smithsonite

sodalite

sphalerite

spodumene

stellerite

stishovite

strontianite

talc

topaz

tourmaline

tremolite

tridymite

wavellite

willemite

zircon

I think you need to provide more information. Cleavage is a beginning, but certainly not enough for a positive ID. As Julie pointed out, you mention "no perfect cleavage". Is any cleavage visible?


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 Post subject: Re: Fieldspar?
PostPosted: Fri Feb 21, 2014 2:45 pm 
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Joined: Thu Feb 20, 2014 3:41 pm
Posts: 49
Location: Wyoming USA
This makes it worse for me.
I am a beginner rock puppy.
I thought clravage is how a stone breaks.
It actually has mostly flattened side's.
Not exactly sure how to identify stones yet!
I love to look at it because of the black and yellow inclusions.
I guess I can't rule out quartz.
To a jeweler those may not be eye candy.
It also has trigons that are neat to look at up close.
There are parts you can see through.
The picture didn't do the stone justice.
I had to crop the picture to make it fit.


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 Post subject: Re: Fieldspar?
PostPosted: Fri Feb 21, 2014 2:49 pm 
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Joined: Thu Feb 20, 2014 3:41 pm
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Location: Wyoming USA
Also I thought where the spilt line is makes it a twin?


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