Bastnäsite
Bastnäsiet, Bastnaesit, Bastnaesita, Bastnäsita, Bastnaesite, Bastnasita, Bastnasite, Bastnazyt, Бастнезит, บาสต์เนไซต์, 氟碳鈰礦
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
|
Formula Bastnäsite Ce: (Ce,La)[CO3]F
Mineral class: carbonates Crystal system: hexagonal Mohs scale: 4 - 4.5 Density /g/cm3: 4.9 - 5.2 Refractive index: 1.717 - 1.722 Cleavage: different Colors: colorless, yellowish, reddish-brown Luster: vitreous - greasy Fluorescence: - Pleochroism: weak Largest Bastnäsite: ? Deposits: worldwide 1st Description: Ce: 1951; La: 1961; Y: 1970 Name: for the type locality at the Bastnäs mines / Riddarhyttan / Västmanland / Sweden Weak radioactivity |
|
Bastnäsite Mineral
Size: 3.3 x 2.9 x 1.3 cm Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite
Weight: 1.26 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite Mineral
Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite
Size: 0.92 x 0.76 cm Weight: 4.25 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.thegemtrader.com |
 |
|
Bastnäsite Mineral
Size: 1.5 x 1.5 x 0.3 cm Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite
Weight: 5.09 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite Mineral
Size: 0.93 x 0.52 x 0.36 cm Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.crystal-treasure.com |
 |
|
Bastnäsite
Weight: 11.62 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.americanthai.com |
 |
|
Bastnäsite
Weight: 0.86 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.gemfrance.com |
 |
|
Bastnäsite Mineral
Size: 1.3 x 0.4 x 0.4 cm Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.steveperrygems.com |
 |
|
Bastnäsite
Weight: 0.74 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.rocklogic.biz |
 |
|
Bastnäsite
Size: 0.7 x 0.4 x 0.2 cm Weight: 1.14 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.rocklogic.biz |
 |
|
Bastnäsite
Size: 0.23 x 0.15 cm Weight: 0.04 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.irocks.com |
 |
|
Bastnäsite color change
Weight: 2.09 ct Origin: Zagi Mt. / Khyber Region / FATA / Pakistan Photo by kind permission of © www.americanthai.com |
 |
|
Bastnäsite color change
Size: 0.87 x 0.65 x 0.46 cm Weight: 2.86 ct Origin: Afghanistan Photo by kind permission of © www.bkkgemstones.com |
 |
⇐ Intro Page ⇐ Gemstones