Bloodstone or heliotrope carvings
These frogs were carved from bloodstone by Paul Dreher. Bloodstone is green agate containing speckles of red jasper. All these derive from the cryptocrystalline quartz group
Picture No
10717282
Media ID
47591376
Size
1736px x 1290px
(1.1MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Agate Amphibia Amphibian Anura Bloodstone Chalcedony Cryptocrystalline Dioxide Frog Gemstone Heliotrope Jasper Lissamphibia Lissamphibian Mineral Quartz Silicate Silicon Speckled Tectosilicate
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