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The Big Quartz Reference Sheet by ErinPtah The Big Quartz Reference Sheet by ErinPtah
"...and Steven!"

A big frickin' masterpost for all your quartz-related needs. Don't forget to view fullsize for easier reading.

Cousin to the Underused Gemsona Mineral Reference Sheet.

Tumblr: Reblog from here, don't repost.

Commissions are open. / Patreon / Society6

Underused Gemsona Mineral Reference Sheet by ErinPtah Big Buff Quartzes, plus a Ruby by ErinPtah I made you a meepmorp by ErinPtah Terrifying Gem Army by ErinPtah 
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UmbraFoxPaws Featured By Owner Dec 5, 2016  Hobbyist
Lovely chart, it shows how much time you put into it.
Dalmatian Jasper is actually a quartz and classified as a siliacate. It's not a true jasper but close to the same qualities. It's mostly quartz and feldspar based with spots caused by tourmaline(dravite) and iron oxide. Yeah it's more correctly Dalmatian Stone, but jasper means spotted stone, so I say close enough.
ErinPtah Featured By Owner Dec 5, 2016  Professional Digital Artist
Glad you like it!

Something can be silicate without being a quartz. If something is "mostly quartz and feldspar" that makes it a felsic rock -- possibly a rhyolite.

Lots of gemstone-selling websites misuse terms right and left, to the point where it can take a lot of digging to find any accurate information. So for this chart, I wanted to counter that by being as strict and precise as possible.
UmbraFoxPaws Featured By Owner Dec 6, 2016  Hobbyist
Ok I understand. I was just going by what my rock guy had told me when I was buying stones. But again as you stated with the websites, when they are looking to make a sale they'll tell you anything.
lilymouse23 Featured By Owner Dec 1, 2016
AWESOME. Thanks for this. I don't really draw gemsonas but its cool for me to have fun guessing what a single gem or gem fusion in the show may look like. Wow! Fireworks! lol
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Submitted on
November 28, 2016
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