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7637 mineral photos
1244 locality photos
Cassiterite constitutes the chief ore of tin, as well as highly aesthetic and popular collector specimen. Tin was a foundation of the beginning of metal smelting in the early Bronze Age and still constitutes one of the core materials of modern technology.
Cuprite is a minor ore of copper, usually appearing as secondary encrustations on primary copper ores. Nice and rare cuprite crystals are a popular among collectors. It is prized as a gemstone because of its vivid red internal reflection, but its softness precludes wide use in jewelry.
Titanite is a common titanium silicate, which can form outstanding and gemmy crystals. It is an attractive gemstone and collector material with vibrant green and yellow crystal forms. However, its low hardness and intrinsic fragility makes it unsuitable for commercial jewelry use, keeping it from becoming a mainstream product.
Hydraulic mining is easy and efficient method to move huge amounts of dirt. It was used by Romans in their placer gold mines and later became very popular during California and Alaska gold rush events.