Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Usakos, Karibib dist., Erongo, Namibia
- Formula
- Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4
- Size
- Thumbnail 2.5x1.5x0.8cm
Sweet piece of emerald green indicolite, partially terminated with one good side.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- White Rocks quarry, Middlesex Co., Connecticut, United States
- Formula
- Na(Al1.5Li1.5)Al6(BO3)3Si6O18(OH)4
- Size
- Cabinet 13x8.5x7cm
- Tagged
- pegmatite mineral
- Special Info
- Illustrated in London's book "Pegmatites"
Watermellon tourmaline, green rims with pink centers, in Albite and Quartz matrix. It is illustrated in Fig. 8-12a & b photos on page 138 in London's book "Pegmatites". In this figure London states "Pocket-margin transition from dark green tourmaline to colorless and pink tourmaline toward the pocket zone."
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- (K2Pb)Cu4O2(SO4)4
- Size
- Thumbnail 1x1x1cm
- Tagged
- copper
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
- Special Info
- Author's Material
This is a specimen from the author's study material, Dr. Igor Pekov. The exact locality is: Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. The Eleomelanite is the dark green or black crystal grains in the matrix of Euchlorine.
Please refer to: Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Chukanov, N.V., Belakovskiy, D.I., Sidorov, E.G., Britvin, S.N. and Pushcharovsky, D.Y. (2016) Eleomelanite, IMA 2015-118. CNMNC Newsletter No. 30, April 2016, page 412; Mineralogical Magazine, 80, 407–413.
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- (K2Pb)Cu4O2(SO4)4
- Size
- Chip xxcm
- Tagged
- copper
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Author's Material
This is a specimen from the author's study material, Dr. Igor Pekov. The exact locality is: Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. The Eleomelanite is the dark green or black crystal grains in the matrix of Euchlorine.
Please refer to: Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Chukanov, N.V., Belakovskiy, D.I., Sidorov, E.G., Britvin, S.N. and Pushcharovsky, D.Y. (2016) Eleomelanite, IMA 2015-118. CNMNC Newsletter No. 30, April 2016, page 412; Mineralogical Magazine, 80, 407–413.
- Availability
- Sold
- Locality
- Gutglück Mine, Braunfels, Wetzlar, Hesse, Germany
- Formula
- Fe63+(PO4)4O(OH)4 ยท 6H2O
- Size
- Miniature 3.5x2x2cm
- Tagged
- phosphate
Dark rusty red platy crystals to 1mm in a 1.5cm area. Eleonorite was described in 2015.
- Availability
- Sold
- Locality
- Case Parigi, Martiniana Po, Cuneo, Piedmont, Italy
- Formula
- Mg6(Mg,Ti,Zr,□)2(Al,Mg)6Si8O28(OH)10
- Size
- Miniature 3.5x3x1.5cm
- Special Info
- Type Locality
Ellenbergerite, a very rare titanium-zirconium silicate, was described in 1984 from this locality. It is found no where else on Earth except this locality and a few nearby localites. It typically occurs as inclusions in Pyrope garnets, but rarely as single crystals like this specimen. The largest crystal is 1.5mm at the lower arrow.
