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Rare Minerals

Friday, 07 March 2025 06:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including szenicsite, tapiolite-(fe), tellurobismuthite, triazolite, tyuyamunite, and wakabayashilite and more from places like Jardinera No.1 mine, Inca de Oro, Atacama, Chile, Quixaba pegmatite, Frei Martinho, Paraiba, Brazil, Red Cloud mine, Boulder Co., Colorado, United States, Pabellón de Pica, Chanabaya, Iquique, Tarapacá Region, Chile, Ridenour mine, Coconino Co., Arizona, United States, and Khaidarkan, Kyrgyzstan.

SOLD

Szenicsite

#65667

Details
Data
Provenance
Resources

Locality: Jardinera No.1 mine, Inca de Oro, Atacama, Chile
Formula: Cu₃MoO₄(OH)₄
Availability: Sold
Size: 3 x 2 x 1.5 cm - Thumbnail
Tagged: copper
Special Info: Type Locality

Green plates of Szenicsite 1.2cm wide. Szenicsite is named for the Terry Szenics, an extraordinary field collector and accomplished mineralogist.

Szenicsite

Formula: Cu₃MoO₄(OH)₄
Crystal System: Orthorhombic
Crystal Habit: Bladed, Radial
Cleavage: Perfect, None, None
Luster: Adamantine
Color: dark green
Streak: green
Class: Orthorhombic
Fracture: Uneven
Hardness: 3.5-4

Special Info: Type Locality

Mineralpedia: View Szenicsite
On Dakota Matrix: Previously Sold Szenicsite
On Dakota Matrix: Other Available Szenicsite
WebMineral: View Szenicsite
Mindat: View Szenicsite

SOLD

Tapiolite-(Fe)

#65669

Details
Data
Provenance
Resources

Locality: Quixaba pegmatite, Frei Martinho, Paraiba, Brazil
Formula: Fe²⁺Ta₂O₆
Availability: Sold
Size: 3.5 x 2.5 x 3 cm - Miniature
Tagged: pegmatite mineral

This is an excellent crystal of Tapiolite-(Fe) from the stock of the late Luiz Menezes. There are several faces to the crystal, which is somewhat mal-formed probably due to restrictions of opposing crystallizing minerals. It measures 1cm. Tapiolite is a rare mineral and seldom seen at this large scale.

Tapiolite-(Fe)

Formula: Fe²⁺Ta₂O₆
Crystal System: Tetragonal
Crystal Habit: Granular, Disseminated
Cleavage: Imperfect, None, None
Luster: Metallic
Color: brownish black, black
Streak: brown
Class: Tetragonal - Ditetragonal Dipyramidal
Fracture: Brittle
Hardness: 6

Mineralpedia: View Tapiolite-(Fe)
On Dakota Matrix: Previously Sold Tapiolite-(Fe)
On Dakota Matrix: Other Available Tapiolite-(Fe)
WebMineral: View Tapiolite-(Fe)
Mindat: View Tapiolite-(Fe)

SOLD

Tellurobismuthite

with Calaverite - #65468

Details
Data
Provenance
Resources

Locality: Red Cloud mine, Boulder Co., Colorado, United States
Formula: Bi₂Te₃
Availability: Sold
Size: 2.5 x 2.5 x 1.5 cm - Thumbnail
Tagged: tellurium

Slender, silvery gold crystals of Calaverite in a mass flooded with silvery Tellurobismuthite.

Tellurobismuthite

Formula: Bi₂Te₃
Crystal System: Trigonal
Crystal Habit: Massive - Fibrous, Platy
Cleavage: Perfect, None, None
Luster: Metallic
Color: pale gray
Streak: lead gray
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Flexible
Hardness: 1.5-2

Mineralpedia: View Tellurobismuthite
On Dakota Matrix: Previously Sold Tellurobismuthite
On Dakota Matrix: Other Available Tellurobismuthite
WebMineral: View Tellurobismuthite
Mindat: View Tellurobismuthite

SOLD

Triazolite

with Salammoniac - #65676

Details
Provenance
Resources

Locality: Pabellón de Pica, Chanabaya, Iquique, Tarapacá Region, Chile
Formula: NaCu₂(N₃C₂H₂)₂(NH₃)₂Cl₃ · 4H₂O
Availability: Sold
Size: 1.4 x 2 x 2.5 cm - Thumbnail
Tagged: copper
Special Info: Type Locality

Superb blue sprays to 2mm across with good coverage. Beautifull crystals as seen under the scope! Triazolite is a relatively new mineral and was published in 2018. Here the full write-up click here.