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Spider jasperLocale: Mexico Approx dimensions: 4 x 2 x 1. 5" Approx weight: 330g Spider jasper is called a lot of names in the industry, including chrysanthemum, starburst, and fireworks jasper, due to its distinctive radial starburst pattern on a dark chocolate brown and red tinted background. Spider jasper is in fact not a true jasper, but a variety of rhyolite. A lot of jaspers are actually rhyolite! Mineralogically jasper is a variety of chalcedony, which is a

Locale: Sidi Ayed

and the dirt just kept coming out

UV reactivity Calcite can cause the hydroxyapophyllite crystals growing over it to glow a weak red under 365 nm UV light—try it in a dark room with a strong flashlight

Fès-Meknès Region

large piece with fantastic Halloween colors of orange

Approx dimensions: 4

The peridotite would have formed in the upper mantle but pieces of it became entrapped in magma during the eruption that transported it to the earth’s surface

Approx weight: 109g

Approx size: 4

This is a beautiful example of growth forms typical of this region

This one has the typical coloration on one side

rounded stalactites with sugary fibrous parallel-growth quartz coating the surface

Exchange/Return Notes