Tumbled Natural Citrine / 1-2" AVG - 1 LB. LOT Menu Skulls vendor shows

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Medium Double Terminated Herkimer-Like Diamond Quartz Lot

but instead a kind of glass that forms when volcanic lava rapidly cools in the open air without forming any specific crystalline structures

and black or blue calcite

Tumbled Natural Citrine / 1-2" AVG - 1 LB. LOT Menu Skulls vendor showsQuantity: 1 pound Average size range: 1 to 2 inches Citrine is a special variety of quartz that can range in color from darker browns to pale yellow due to iron hydroxide in the crystal, and it typically has a cloudy appearance. As both are varieties of quartz, citrine and amethyst are sometimes found together in the same crystal in a formation known as ametrine.