Recently Released New Additions
Rare Minerals
Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including chalcopyrite, diaspore, and proustite and more from places like French Creek mines, Chester Co., Pennslyvania, United States, Neudorf, Harz, Germany, Chester Emery mines, Hampden Co., Massachusetts, United States, and Jachymov, Erzgegirge, Bohemia, Czech Republic.
Chalcopyrite
- Sold
- Add to Favorites
- Locality
- French Creek mines, Chester Co., Pennslyvania, United States
- Formula
- Cu1+Fe3+S2
- Availability
- Sold
- Size
- 5 x 2.5 x 2 cm - Miniature
- Tagged
- sulfide , copper
- Special Info
- Antique Specimen
Old-timer specimen from a classic locality. Hoppered crystals to 1.5cm. See prov. for label. Ex. A.E. Seamen museum specimen.
Chalcopyrite
- Formula
- Cu1+Fe3+S2
- Crystal System
- Tetragonal
- Crystal Habit
- Euhedral Crystals, Striated, Druse
- Cleavage
- Indistinct, None, None
- Luster
- Metallic
- Color
- brass yellow, honey yellow
- Streak
- greenish black
- Class
- Tetragonal - Scalenohedral
- Fracture
- Brittle
- Hardness
- 3.5
- Collection
- Ex. A.E. Seaman Museum
- Special Info
- Antique Specimen
- Mineralpedia
- View Chalcopyrite
- On Dakota Matrix
- Previously Sold Chalcopyrite
- On Dakota Matrix
- Other Available Chalcopyrite
- WebMineral
- View Chalcopyrite
- Mindat
- View Chalcopyrite
Chalcopyrite
- $25.00 - Available
- Add to Cart
- Add to Favorites
- Locality
- Neudorf, Harz, Germany
- Formula
- Cu1+Fe3+S2
- Availability
- Available
- Price
- $25.00
- Size
- 7 x 4.5 x 3.3 cm - Sm Cabinet
- Special Info
- Antique Specimen
Tiny 1mm Chalcopyrite crystals with Galena. Good old label with it.
Chalcopyrite
- Formula
- Cu1+Fe3+S2
- Crystal System
- Tetragonal
- Crystal Habit
- Euhedral Crystals, Striated, Druse
- Cleavage
- Indistinct, None, None
- Luster
- Metallic
- Color
- brass yellow, honey yellow
- Streak
- greenish black
- Class
- Tetragonal - Scalenohedral
- Fracture
- Brittle
- Hardness
- 3.5
- Collection
- Ex. A.E. Seaman Museum
- Special Info
- Antique Specimen
- Mineralpedia
- View Chalcopyrite
- On Dakota Matrix
- Previously Sold Chalcopyrite
- On Dakota Matrix
- Other Available Chalcopyrite
- WebMineral
- View Chalcopyrite
- Mindat
- View Chalcopyrite
Proustite
- $195.00 - Available
- Add to Cart
- Add to Favorites
- Locality
- Jachymov, Erzgegirge, Bohemia, Czech Republic
- Formula
- Ag3AsS3
- Availability
- Available
- Price
- $195.00
- Size
- 10 x 8 x 4.5 cm - Cabinet
- Tagged
- sulfide , silver
Ruby red Proustite crystals to 6mm tucked in vug. The matrix looks to be native Arsenic. This is an antique specimen from the A. E. Seamen museum. See prov. tab for label.
Proustite
- Formula
- Ag3AsS3
- Crystal System
- Trigonal
- Crystal Habit
- Massive, Crystalline - Poor, Blocky
- Cleavage
- None, None, None
- Luster
- Sub Metallic
- Color
- vermilion, reddish gray
- Streak
- vermilion red
- Class
- Trigonal - Hexagonal Scalenohedral
- Fracture
- Brittle - Sectile
- Hardness
- 2-2.5
- Mineralpedia
- View Proustite
- On Dakota Matrix
- Previously Sold Proustite
- On Dakota Matrix
- Other Available Proustite
- WebMineral
- View Proustite
- Mindat
- View Proustite
