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Mineral Specimen Size Chart

 Thumbnail = about 1" x 1" (or 2.5 cm x 2.5 cm) or less
Miniature = about 2" x 2" (or 5 cm x 5 cm)
Small Cabinet = about 3" x 3" (or 7.5 cm x 7.5 cm)
Cabinet = about 4" x 4" (or 10 cm x 10 cm) or up

 

Mineral Species J-O

Click thumbnail to view image

Specimen:

BAS-97

Magnetite

Price: 

$16

Location: 

Mina Huaquio

Potosi, Bolivia

Description:

A 7.6 x 5.5 x 3 cm plate of black Magnetite crystals up to 1.2 cm in size on a light gray rhyolite matrix.

Magnetite, Potosi, Bolivia

Specimen:

BAS-135

Malachite

Price: 

$5

Location: 

Vera Cruz, Mexico

Description:

A 4.2 x 2.5 x 1.9 cm specimen of velvety dark green Malachite on a limonite matrix.

Malachite, Vera Cruz, Mexico

Specimen:

BAS-91

Muscovite

Price: 

$11

Location: 

Yates Brooks Farm

Cleveland County 

North Carolina

Description:

A 4 x 3 x 2.5 cm cluster of silvery brown crystalline Muscovite crystals up to 2.4 cm in width.

Muscovite, Cleveland County, North Carolina

Muscovite, Cleveland County, North Carolina

Specimen:

BTJ-57

Lepidolite on Clevelandite

Price: 

$8

Location: 

Dunton Mine

Newry, Maine

Description:

A 6.3 x 1.7 x 1.3 cm specimen of purple Lepidolite on white Clevelandite.

Lepidolite on Clevelandite, Dunton Mine, Newry, Maine

Specimen:

BAS-4

Magnetite

Price: 

$35

Location: 

Mina Huaquio

Potosi, Bolivia

Description:

A 9.9 x 5.8 x 3 cm specimen with black Magnetite crystals on a gray Feldspar matrix.  Magnetite crystals up to 1.1 cm in size.

Magnetite on Feldspar, Potosi, Bolivia

Specimen: 

BTJ-11

Marcasite

Price:  

$10

Location:  

Tri-State Mining District

Joplin, Missouri

Description:

A 5 x 3.1 x 2.3 cm Marcasite fan.

Marcasite, Joplin, Missouri

Specimen: 

BTJ-12

Microcline with

Smoky Quartz

Price:  

$11

Location:  

Blueberry Crossing

Bartlett, New Hampshire

Description:

A 5.5 x 5.5 x 2.4 cm specimen with well terminated tan Microcline crystals to 2.5 cm with crystallized smoky Quartz on back side of specimen.

Microcline with smoky Quartz, Bartlett, New Hampshire

Microcline with smoky Quartz, Bartlett, New Hampshire

Specimen:

BTJ-48

Muscovite Mica with Rutile

Price: 

$10

Location:

Boiling Springs

North Carolina

Description:

A 4 x 2.5 x 2 cm specimen of silver Muscovite Mica crystals with reticulated red Rutile crystals.

Muscovite with Rutile, Boiling Springs, North Carolina

Muscovite with Rutile, Boiling Springs, North Carolina

Specimen: 

BTJ-43

Natrolite

Price:  

$40

Location:  

Benitoite Gem Mine

San Benito County

California

Description:

A 7 x 3.8 x 3 cm specimen of white Natrolite form unusual blocky crystals up to 1.2 cm in length and 1 cm in width.

Natrolite, San Benito County, California

 

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