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1 item @ $40.00  

Beryllium Minerals

Friday, 21 June 2024 06:00 PM

Minerals containing beryllium can be some of the rarest on earth. If you like rare minerals this is a must see Special Edition.

Chrysoberyl

var. alexandrite - #46434
Locality
Novello mine, Fort Victoria, Masvingo dist., Zimbabwe 
Formula
BeAl2O4 
Availability
Sold
Size
2 x 1.5 x 1 cm - Thumbnail 
Tagged
beryllium  

Excellent color-changing Chrysoberyl, variety alexandrite. The purple colors are under halogen and the blue is under fluorescent lights. The digital camera responds differently to both lights. Under sunlight it is a strong green.


Chrysoberyl

Formula
BeAl2O4 
Crystal System
Orthorhombic 
Crystal Habit
Twinning Common, Prismatic, Tabular 
Cleavage
Distinct, Imperfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
blue green, brown, brownish green, green, gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
8.5 

Chrysoberyl

#64251
Locality
Scott's Rose Quartz mine, Custer Co., South Dakota, United States 
Formula
BeAl2O4 
Availability
Sold
Size
3.5 x 5.5 x 3.5 cm - Sm Cabinet 
Tagged
beryllium  

Thick green plates in pegmatite matrix.


Chrysoberyl

Formula
BeAl2O4 
Crystal System
Orthorhombic 
Crystal Habit
Twinning Common, Prismatic, Tabular 
Cleavage
Distinct, Imperfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
blue green, brown, brownish green, green, gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
8.5 

Clinobehoite

#BW64246
Locality
Malyshevskoe deposit, Malyshevo, Sverdlovsk Oblast, Russia 
Formula
Be(OH)2 
Availability
Sold
Size
1.7 x 1.2 x 1 cm - Thumbnail 
Tagged
beryllium  
Special Info
Type Locality 

Colorless crystal with emanating needle-like crystals. Clinobehoite is very rare.


Clinobehoite

Formula
Be(OH)2 
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
colorless, white 
Streak
white 
Class
Monoclinic - Sphenoidal 
Hardness
2-3 
Special Info
Type Locality
SOLD
Danalite - 50473
Danalite - 50473

Danalite

#50473
Locality
Lupikko mine, Pitkäranta, Karelia Republic, Russia 
Formula
Be3Fe2+4(SiO4)3
Availability
Sold
Size
3.6 x 3 x 2.5 cm - Miniature 
Tagged
beryllium  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Red crystal grains to 1mm with purple Fluorite in black granular matrix.


Danalite

Formula
Be3Fe2+4(SiO4)3
Crystal System
Isometric 
Crystal Habit
Massive 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Greasy 
Color
brown, brownish black, grayish yellow, pink, reddish brown 
Streak
gray white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
5.5-6 
Special Info
XRD Confirmed
Special Info
EDS Confirmed
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Danalite

#57750
Locality
Trudovoe Sn deposit, Inyl'chek Range, Kyrgyzstan 
Formula
Be3Fe2+4(SiO4)3
Availability
Sold
Size
2.5 x 1.5 x 1.3 cm - Thumbnail 
Tagged
beryllium  

Deep red, glassy crystal grains to 2mm. Identified by Dr. Igor Pekov.


Danalite

Formula
Be3Fe2+4(SiO4)3
Crystal System
Isometric 
Crystal Habit
Massive 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Greasy 
Color
brown, brownish black, grayish yellow, pink, reddish brown 
Streak
gray white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
5.5-6 
Mineralpedia
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Danalite

#64252
Locality
Rockport, Essex Co., Massachusetts, United States 
Formula
Be3Fe2+4(SiO4)3
Availability
Sold
Size
4.5 x 3.8 x 2.2 cm - Miniature 
Tagged
beryllium  
Special Info
Type Locality 

Red crystal grains up to 6mm in granitic rock.


Danalite

Formula
Be3Fe2+4(SiO4)3
Crystal System
Isometric 
Crystal Habit
Massive 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Greasy 
Color
brown, brownish black, grayish yellow, pink, reddish brown 
Streak
gray white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
5.5-6 
Special Info
Type Locality
Mineralpedia
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On Dakota Matrix
Previously Sold Danalite
On Dakota Matrix
Other Available Danalite
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Mindat
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