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Database content:
7668 mineral photos
1243 locality photos

Last articles

History of Klondike and Nome Gold Rush Events

The Klondike (Yukon) Gold Rush holds the record as one of the shortest-lived mining booms ever, lasting a scant 2 years, from August 1896 to September, 1898, when it was undermined by the slightly longer-lived Nome (Alaska) Gold Rush (September 1898 to 1905).


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Beryl - The Colorful Gem

Beryl is extremely popular mineral, which occurs in a diversity of shapes and colors. Popular gemstone varietes include emerald, aquamarine and heliodor. Beryl is the only common source of beryllium, which is used in many hi-tech applications.


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Aragonite - The Pearly Carbonate

Aragonite is the less known cousin of calcite. Despite the lack of popularity, aragonite crystals and stalactites are among the most aesthetically-pleasing mineral specimes. Aragonite is present in various hydrothermal environments and it is the principal component of mollusk shells, coral skeletons and pearls.


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Hematite - The Bloodstone

Hematite is the abundant form of iron oxide, natural red pigment, and an integral part of the largest iron ore deposits on Earth. Highly aesthetic crystals and shiny botryoidal hematite aggregates are also very popular collector specimens.


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Vivianite - The Green Iron

Vivianite is found in many geological environments. Its great blue-green crystals are very rare and very popular among collectors. Also vivianite filled fossil shells are among very interesting and popular collectors items.


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Proustite

Jáchymov, Czech Republic

7 x 3 mm

Korálové jámy, Czech Republic

30 x 12 mm

Quartz

Korálové jámy, Czech Republic

30 x 15 mm

Quartz

Korálové jámy, Czech Republic

28 x 15 mm

Korálové jámy, Czech Republic

34 x 13 mm

Quartz

Korálové jámy, Czech Republic

27 x 10 mm