Yiannis Michalopoulos

Yiannis Michalopoulos

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HEMATITE Pabst Mine, Ironwood, Gogebic Iron Range, Gogebic County, Michigan, USA "Needle Ore" is a sub-variety of Hematite that presents as masses of narrow columns or slivers that break up into curving needles; hence "needle" ore. The Pabst Mine that produced this specimen hosted a collapse in 1926 that killed 3 and trapped 46 miners for 129 hours. Overall measurements: 3.5 x 3 x 1.25 inches (8.9 x 7.6 x 3.2 cm).

HEMATITE Pabst Mine, Ironwood, Gogebic Iron Range, Gogebic Co. "Needle Ore" is a sub-variety of Hematite that presents as masses of narrow columns or slivers that break up into curving needles; hence "needle" ore

Rare Cross Section of Tourmaline Polished slice of a transparent tourmaline crystal showing colorful internal zoning. The most amazing fact of this piece is the triangular pattern that appears throughout the section. Perfectly formed geometric shapes like this, naturally occurring in a mineral’s formation, are rare.

odditiesoflife: “Rare Cross Section of Tourmaline Polished slice of a transparent tourmaline crystal showing colorful internal zoning. The most amazing fact of this piece is the triangular pattern.

Primary Malachite stalactites that look like a space city in some sci-fi movie, from Mashamba West Mine, DR Congo (Zaire)

Congo (Zaire) Primary Malachite forms an intriguing specimen of stalactites of fibrous crystals, with rounded tops. The fibrous texture creates a gorgeous chatoyant lustre, which gives a halo effect to the tops of the stalactite.