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Matacana Mine, Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia Even with its small size, the specimen is exceptional due the perfect preservation of the fossil. We must consider that fossilization by Emerald, recently introduced, is quite extraordinary. Matecaña, El Diamante, Gachalá, Cundinamarca, Colombia. Found in 03/2006 Specimen size: 1.4 x 1.3 x 0.8 cm Mindat.org Photo of the Day - 29th Dec 2006 |
| © fabreminerals.com | Photo ID: 75320 View Count: 1347 |
Beryl (Var: Emerald) : Be3(Al,Cr)2Si6O18 | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia Fossilization on emerald, in this case a Gastropod, is very, very, rare. On the surface of he fossil, with the recrystallization of emerald there are also small but easily distinguishable crystals of Pyrite. Matecaña, El Diamante, Gachalá, Cundinamarca, Colombia. Found in 03/2006 Specimen size: 1.3 x 1.1 x 0.9 cm |
| © fabreminerals.com | Photo ID: 88848 View Count: 260 |
Beryl (Var: Emerald) : Be3(Al,Cr)2Si6O18 | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia One of the rarest types of emeralds, a TRAPICHE EMERALD. A TRAPICHE is the result of the growth of an Emerald Crystal within another mineral (the other mineral is not identified). They are characteristically hexagonal. Sample is about 3 mm across and 5 mm in length. Alex Knoll Collection Georgian Court University Rock and Mineral ... |
| Photo ID: 164285 View Count: 176 | |
Beryl (Var: Emerald) : Be3(Al,Cr)2Si6O18 | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia Extraña macla de Gachalá. Tamaño total: 6 x 5 cm |
| © Daniel S. Yunis | Photo ID: 219563 View Count: 45 |
Euclase : BeAl[OH|SiO4] | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia 2.1 x 1.3 x 0.7 cm. An absolutely flawless, perfect, gem euclase crystal. It has glassy lustre and is more intensely transparent and bright, in person. This mine sets the standard for euclase and the recent finds here (from about 2004 until recently) have provided many more specimens than in the past it is true - but few of this caliber. This ... |
| © Rob Lavinsky | Photo ID: 197435 View Count: 109 |
Euclase : BeAl[OH|SiO4] | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia 1.5 x 0.9 x 0.5 cm (largest). A superb 2-piece set of two, light grass-green with hints of blue, gem euclase crystals from Gachala, Colombia and the Irv Brown Collection. The crystals have glassy lustre, sharp terminations and are more intensely transparent and bright, in person. 5.75 carats. |
| © Rob Lavinsky | Photo ID: 213092 View Count: 45 |
Euclase : BeAl[OH|SiO4] | |
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Gachalá, Guavió-Guatéque Mining District, Boyacá Department, Colombia A beautiful single terminated glassy slightly translucent blue euclase crystal, the lower back side hosting several bright lustrous pyrite crystals. Measures 2.5 x 1.5 x 1.2 cm in size overall. |
| © Dan & Diana Weinrich Minerals | Photo ID: 246249 View Count: 22 |
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