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  • About Moonbeams Jewelry
  • Shop by Gemstone Color
  • Shop by Gemstones
  • Simply Elegant Gemstone Pendants
  • Kazuri and Ceramic Jewelry Gallery
  • Custom-Designed Jewelry
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  • Rainforest (Rhyolite) Jasper

Rainforest (Rhyolite) Jasper

Rhyolite is a relatively rare volcanic rock that exists naturally in mottled colors of brown, mossy green and a deep rusty-red (terracotta). This intricately patterned stone begins in a molten state that cools too quickly for crystals to form. Because rhyolitic magma and lava are so thick, they tend to build up pressure until a gas explosion in the volcano throws them out in particles ranging from ash all the way up to big blocky chunks. The decorative rock that is cut into the ornamental stones used for jewelry, is formed when the lava flow "bands" and is literally frozen into the stone. The stones with more green are often called Rainforest Jasper because of the forest-like colorations--But they are actually igneous rock with a high silica content — chemically identical to granite. The patterns on each stone vary greatly. Rainbow or Peacock Rhyolite (more often Peacock Jasper) are lighter in color than typical Brown and Green Rhyolite, and have more distinct areas of red banding. An interesting tidbit: Although the terms Ryolite and Rhyolite are generally used interchangeably, geologists refer to "Rhyolite" (also called Mushroom Rhyolite) as being grey, brown, or having a reddish-terra cotta hue. Both varieties are found in the USA and Africa. This website has a separate listing for Mushroom Rhyolite.
Spectacular Green, Orange, Terracotta and Brown Rainforest Jasper and Bronze Necklace (GRN-008)
$780.00
$780.00
Make a Bold Statement in this Amazing Ryolite and Bronze Necklace (GRN-009)
$780.00
$780.00
Vivid Red Sponge Coral and Peacock Ryolite Necklace is Stunning (RED-002)
$425.00
$425.00
Classic ​Semi-Precious Gemstone Jewelry and Exotic Conversation Pieces...
Miriam's One-of-a-Kind Designs for Men & Women Never Go Out of Style.

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  • Home
  • About Moonbeams Jewelry
  • Shop by Gemstone Color
  • Shop by Gemstones
  • Simply Elegant Gemstone Pendants
  • Kazuri and Ceramic Jewelry Gallery
  • Custom-Designed Jewelry
  • Beaded Accessories for Home and Office
  • Custom-Designed & Limited Edition Beaded Accessories for Home and Office
  • FAQs
  • Ordering Terms & Shipping
  • Meet Miriam
  • Contact Us