Discover and read the best of Twitter Threads about #halite

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It’s the last match of Round 1.

#Halite is salt, the deliciously lickable mineral.

#Serpentine is an entire group (including asbestos) sneaking in to a single-mineral competition.

You know how to vote.
I went off about #halite recently. But surely Hot Tubs of Despair is enough by itself to earn your vote:
To be fair, I totally love #Serpentine. It’s a highly-pettable green snake of a rock that makes wine tasty.

Just don’t lick it.
Or breathe it.
And it’s still a cheater of being a whole group.
Read 6 tweets
Today’s #MinCup2019 is a face off between Very Interesting Properties. A translucent rock on a postcard creating a magnifying optical effect next to a small jar of black sand with a magnet stuck to it
Lots of minerals have neat optical effects, but #Ulexite is a bit different.

Light doesn’t pass straight through, like with #quartz or #halite (salt), nor does it have the birefringence of #calcite. Instead it’s a mineral of natural fibre optic channels transmitting light. Top view of the listed minerals on a postcardSide view of the same scene
#Ulexite grows as a bundle of fibers, each of which totally internally reflects light. It’s the same basic optics behind why diamond is sparkly.
Read 7 tweets

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