Muscovite, Schorl, Opal-A (Var: Opal-AN)

Specimen ID: WJR-DYF

Mineral(s)
Muscovite : KAl2(AlSi3O10)(OH)2
Schorl : NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Opal-A (Var: Opal-AN) : SiO2·nH2O
Locality
Mindat locality:
Dimensions
4.7cm x 3.8cm x 2.9cm
Events

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019

Photo added to mindat.org

4.7 x 3.8 x 2.9 cm. This piece features a handful of fairly thick, stout, semi-metallic pseudohexagonal groups of muscovite mica measuring up to 2.7 cm across which are aesthetically set atop lustrous jet-black schorl prisms and partially coated by "hyalite" opal (now called opal-AN). You don't think of mica as the main focal point of most specimens, but these muscovites are sitting so beautifully atop the schorl crystals, they're much more than an accessory species. Interestingly, there is a smaller schorl crystal on the side of the piece which is completely hollow inside and actually hosts a few tiny muscovite crystals and some white opal as well. You can see a brilliant green fluorescence under SW UV light on the opals on this piece, which is common for the material. From the collection of Shields Flynn.
Robert Lavinsky - 4th December 2019
Liked by
No-one has added this to their favourites.
Log in to comment/edit
10,444,752 minIDs have been issued as of 4th May 2024 4:22 pm UTC