Rough Chalcopyrite Chips / 0.25-0.75" AVG - 1 KILO LOT Valentine's Day and is mostly used to

and is mostly used to extract pure copper

Bright blue chrysocolla is a popular color replacement for turquoise in jewelry

Sardonyx is a combination of two different varieties of chalcedony in distinct layers

Natural rose quartz will vary in color from extremely pale pink

Pieces measure approximately 3" - 5"

Rough Chalcopyrite Chips / 0.25-0.75" AVG - 1 KILO LOT Valentine's Day and is mostly used toQuantity: 1 kilogram Average size range: 0. 25 to 0. 75 inches Chalcopyrite is a brassy golden copper ore, and is mostly used to extract pure copper. When exposed to air, its surface tarnishes in a variety of minerals including bornite or rarely malachite and azurite, giving it an iridescent rainbow sheen.