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Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Evans-Lou Mine, Val-des-Monts, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada Yellowish to brown massive Hellandite-(Y). Possible some Kainosite-(Y) is also present. Field of view 7 mm. Specimen and photo Leon Hupperichs. |
| © Leon Hupperichs | Photo ID: 87049 View Count: 391 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Luserna Valley Quarries, Luserna San Giovanni, Torino Province, Piedmont, Italy Image width 2 mm, from Bonetto del Prete quarry. Collection and photo Giovanni Fraccaro. |
| © G.Fraccaro | Photo ID: 141181 View Count: 199 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Luserna Valley Quarries, Luserna San Giovanni, Torino Province, Piedmont, Italy tabular pale yellow crystal of hellandite-(Y) up to 0.8 mm Photo and collection E. Bonacina |
| © D. Preite | Photo ID: 195333 View Count: 95 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Luserna Valley Quarries, Luserna San Giovanni, Torino Province, Piedmont, Italy crystal size about 1 mm,from Bonetto del Prete quarry. Collection and photo Paolo Grosso |
| © Paolo Grosso | Photo ID: 216981 View Count: 51 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4, Schorl : [Na][Fe2+3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway A 1 cm crystal of Hellandite-(Y) with Schorl from the type locality at Lindvikskollen, Kragerø, Telemark, Norway. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 60007 View Count: 526 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4, Schorl : [Na][Fe2+3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway A 2,5 cm crystal of Hellandite-Y embedded in Schorl from the type locality at Lindvikskollen, Kraherø, Norway. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 142771 View Count: 149 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway Hellandite-(Y) in Quartz, field of view 40 mm. The specimen is in the exhibition of the Riksmuseet in Stockholm. |
| © Riksmuseet Stockholm | Photo ID: 180219 View Count: 119 |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4 | |
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Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway Altered crystal on quartz matrix; crystal is 2cm long; collection of Rudy Bolona. |
| Photo ID: 146859 View Count: 114 | |
Hellandite-(Y) : (Ca,Y)6(Al,Fe3+)Si4B4O20(OH)4, Microcline : K[AlSi3O8], Quartz : SiO2 | |
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Tusion River Valley, Pamir Mts, Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni), Tajikistan Section of short-prismatic crystal of dark-brown hellandite-(Y) in granitic pegmatite. Associating minerals are quartz, microcline and minor albite and schorl. Specimen size is 7x4x4 cm. Collected by S.I. Konovalenko in the end of 80th. Pavel M. Kartashov collection (#3123) and photo. |
| © Pavel M. Kartashov | Photo ID: 171869 View Count: 109 |
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Tusion River Valley, Pamir Mts, Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni), Tajikistan Short-prismatic crystal of dark-brown hellandite-(Y) in granitic pegmatite. FOV is ~2x1.7 cm. Collected by S.I. Konovalenko in the end of 80th. Pavel M. Kartashov collection (#3123) and photo. |
| © Pavel M. Kartashov | Photo ID: 171865 View Count: 103 |
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