Helvine - Mineral specimens search results

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Mineral specimens search results for [ Helvine ]

TP48Z7: Helvine-Genthelvite with Quartz and Calcite

Aggregate of very sharp tetrahedral crystals, bright with a dark brown color and with small parallel Quartz aggregates and a very flattened Calcite crystal with its contour complete. They are between transparent and translucent, as the picture under intense light shows, and this confers a special quality to the samples from this cavity. The sample has been analyzed showing dominant Helvine forming a solid solution with Genthelvite. We will send a copy of the analysis to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2013)
Specimen size: 2.9 × 2.2 × 2.4 cm = 1.14” × 0.87” × 0.94”
Price: [SOLD]

TP88Z7: Helvine-Genthelvite with Quartz and Calcite

Aggregate of very sharp tetrahedral crystals, bright with a dark brown color and with small parallel Quartz aggregates and a strongly flattened Calcite crystal with its contour complete. They are between transparent and translucent, as the picture under intense light shows, and this confers a special quality to the samples from this cavity. The sample has been analyzed showing dominant Helvine forming a solid solution with Genthelvite. We will send a copy of the analysis to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2013)
Specimen size: 3.2 × 3.1 × 2.3 cm = 1.26” × 1.22” × 0.91”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”
Price: €380 / US$404 / ¥62000 / AUD$620

TC98Z7: Helvine-Genthelvite with Quartz and Calcite

Aggregate of very sharp tetrahedral crystals, bright with a dark brown color and with small parallel Quartz aggregates and a strongly flattened Calcite crystal with its contour almost complete. They are between transparent and translucent, as the picture under intense light shows, and this confers a special quality to the samples from this cavity. The sample has been analyzed showing dominant Helvine forming a solid solution with Genthelvite. We will send a copy of the analysis to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2013)
Specimen size: 3.2 × 2.4 × 2.7 cm = 1.26” × 0.94” × 1.06”
Price: [SOLD]

EE51X9: Helvine-Genthelvite, Quartz and Calcite

Group of very sharp tetrahedral Helvine crystals with a superficial layer of Genthelvite. It is on matrix, with white Calcite rhombohedrons, dodecahedral Magnetite and parallel growths of Quartz. Very esthetic due to the contrast between the salmon Helvine-Genthelvite and the Calcite and Quartz matrix. We’ll send a copy of the Helvine-Genthelvite analysis to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2012)
Specimen size: 7.5 × 5.2 × 3.7 cm = 2.95” × 2.05” × 1.46”

Main crystal size: 1.5 × 1.3 cm = 0.59” × 0.51”
Price: [SOLD]

TM31W1: Quartz after Helvine with Fluorite and smoky Quartz

Perimorphic growth of Quartz overlying a tetrahedral crystal, crystal which was probably Helvine, whose morphology, very neat, remains after the process of coating. The crystal is very aerial, standing on a group of smoky Quartz crystals, with a dodecahedral crystal of Fluorite and it is completely hollow. Though it appears so, the hole on a vertex of the crystal is not a break, but a shape of dissolution, as the detailed photo neatly shows.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2011)
Specimen size: 6 × 4.3 × 3 cm = 2.36” × 1.69” × 1.18”
Price: [SOLD]

TB50AJ9: Quartz with Helvine and Hematite (variety iron rose)

Another sample with great impact, a group of clear Quartz crystals with reddish zones due to Hematite inclusions and partially coated by rosette aggregates (iron rose variety) of laminar Hematite crystals and a group of dipyramidal Helvine crystals. The Helvine, from the East Ujimqin Banner area and not from the classic Huanggang mine but from the Qagan Obo deposit, has been analyzed and we will send a copy of the analysis to the buyer.
Qagan Obo deposit (Rongguan), Diyanqinamu mining district, East Ujimqin Banner (Dongwu Qi), Xilin Gol League (Xilinguole Prefecture), Inner Mongolia Autonomous Region China (05/2016)
Specimen size: 17.2 × 6.7 × 5.3 cm = 6.77” × 2.64” × 2.09”

Main crystal size: 17.2 × 2.4 cm = 6.77” × 0.94”
Price: [SOLD]

31 results found.

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