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RK3010B2
Clear to milky quartz crystals with dark epidote growing in and on them make these natural specimens fun to study up close. The epidote shows as green, reddish brown or nearly black needles and crusts, and every chunk has its own mix of the two minerals.
Choose from seven weights, from a pocket piece under 50 grams to a half kilo or larger display chunk. The smaller sizes are great for rock collections, classroom kits and crystal grids, while the larger ones make a natural centerpiece on a shelf. Because they are sorted by weight, shapes vary from long and thin to short and chunky.
Epidote is a calcium aluminum iron silicate that is typically pistachio green, with a Mohs hardness of 6 to 7. It is often found growing with quartz, which is why the two appear together in specimens like these. Quartz is silicon dioxide with a hardness of 7.
What color is the epidote? It can be green, reddish brown or nearly black.
Are these polished? No, they are raw natural specimens.
How big is a 100-200g piece? Size varies with shape; see the hand photos for scale.