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Black in Jewellery: Why the Darkest Stone Is th...
Black is among the easiest colours to wear and among the hardest to sell. Why obsidian occupies a category almost to itself, and what that costs the people making it.
Black in Jewellery: Why the Darkest Stone Is th...
Black is among the easiest colours to wear and among the hardest to sell. Why obsidian occupies a category almost to itself, and what that costs the people making it.
Obsidian and What It Gets Confused With: Black ...
Four black stones get sold under each other's names constantly, and they aren't interchangeable. Two checks will tell you which one you're holding almost every time.
Obsidian and What It Gets Confused With: Black ...
Four black stones get sold under each other's names constantly, and they aren't interchangeable. Two checks will tell you which one you're holding almost every time.
How Obsidian Forms: Cooling Too Fast to Crystal...
Every piece of obsidian is the result of a race between crystal growth and heat loss, and the stone keeps a record of which one won. Here's the mechanism, and...
How Obsidian Forms: Cooling Too Fast to Crystal...
Every piece of obsidian is the result of a race between crystal growth and heat loss, and the stone keeps a record of which one won. Here's the mechanism, and...
Obsidian: What It Is, How It Breaks, and How It...
Obsidian isn't stone. It's glass that cooled too fast to form crystals, which is why it has no grain, why no two pieces break alike, and why four unrelated cultures...
Obsidian: What It Is, How It Breaks, and How It...
Obsidian isn't stone. It's glass that cooled too fast to form crystals, which is why it has no grain, why no two pieces break alike, and why four unrelated cultures...