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Chondrodite : (Mg,Fe2+)5[(F,OH)2|(SiO4)2] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan Beautifull group of gemmy and deep red Chondrodite crystals. Dimensions : 3,21cm x 2,58cm x 1,64cm |
| © Gemswallah | Photo ID: 161491 View Count: 149 |
Chondrodite : (Mg,Fe2+)5[(F,OH)2|(SiO4)2] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan A reddish-brown chondrodite crystal measuring 2.1 x 0.8 x 0.6 cm in size is nestled nicely within a greenish mica matrix. |
| © Dan Weinrich, Inc. | Photo ID: 223545 View Count: 20 |
Clinohumite : (Mg,Fe2+)9[(F,OH)2|(SiO4)4] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan CLINOHUMITE. Vasco Trancoso collection. Size 3cm long. Aesthetic cluster. Photo courtesy from John Veevaert. |
| Photo ID: 185794 View Count: 70 | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan 1.3cm x 1.0cm 0.85cm A complete perfect crystal of this rare mineral. Purchased from TRINITY MINERALS via MOUNTAIN MINERALS INTERNATIONAL September 2007. Collection of Danny Jones. |
| © Danny Jones | Photo ID: 178029 View Count: 61 |
Lazurite : (Na,Ca)8[(S,SO4,Cl2)|Al6Si6O24] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan Crystals of lazurite (lapis-lazuli)on marble. 80x70 mm |
| © JRGL | Photo ID: 46992 View Count: 291 |
Lazurite : (Na,Ca)8[(S,SO4,Cl2)|Al6Si6O24] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan 7.5 x 5.9 x 3.9 cm. Perched high on a white marble matrix with some minor pyrite, are two equant, well formed crystals of royal blue lazurite, the larger crystal measuring 3.5 cm across. |
| © Rob Lavinsky | Photo ID: 177793 View Count: 91 |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan A 11 x 12 cm spcimen of hexagonal grey white Nepheline xls to over 2 cm with a clear sodalite coating that contains an anisotropic unknown blue phase. Photo: Kevin Ringer, MMI; RWMW Collection |
| © RWMW | Photo ID: 250874 View Count: 150 |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan Sodalite coating Nepheline crystals. Vasco Trancoso collection and photo. Size (overall): 6.5 x 5 x 5 cm Sodalite coated nepheline xls up to 2,5cm across (please see child photo). Outstanding Nepheline/Sodalite (Microprobe Confirmed) specimen with a neon blue impressive colour. The current belief is that a poly sulfide ion is responsible for the ... |
| © vasco trancoso | Photo ID: 226253 View Count: 206 |
Sodalite : Na8[Cl2|Al6Si6O24], Nepheline : (Na,K)[AlSiO4] | |
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Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine), Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan This is the glassy sodalite coating about 100 microns thick with the electric blue unknown inclusions from the Ladjuar Medam nepheline. The coating is on nepheline which also has some blue inclusions. The photo shows the two parts of the same fragment in plan and side view. The specimen it was taken from is posted at ... |
| © RWMW | Photo ID: 252265 View Count: 78 |
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