Granular Collection

Garnet Peridotite
Garnet-peridotite, a major constituent in the make-up of the Earth. Image published in Natures Connections An Exploration of Natural History. Published in 2000

Franklinite, zinc ore
A granular rock composed of white calcite, dull green willemite, red zincite and black franklinite (Zinc Iron Manganese Oxide). See T00387 for a fluorescent view

The Roskilde cross. Byzantine reliquary cross of gold. Aroun
The Roskilde cross. Byzantine reliquary cross of gold. The front side is decorated with 7 pearls and 15 gems. Around 1100. Found in the rood arch crucifix of Roskilde Cathedral. Denmark

Vigarano CV3 chondrite
This carbonaceous chondrite meteorite fell in Italy in 1910. It has clearly delineated chondrules or small granules

Cassiterite pseudomorphous after orthoclase
Brown granular cassiterite (tin oxide) have replaced twinned orthoclase crystals. Wheal Coates, St. Agnes, Cornwall

380 million year old rocks
Block specimens of 380 million year old fossil bearing rocks being transported, Latvia

Sulphur crystals partly coated with white granular crystalline calcite from Cianciana, Sicily. Sulphur is an elemental substance and is bright yellow in colour

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