Alkali Feldspar Specimens: Microcline Mineral Specimens, Orthoclase Mineral Specimens, Microcline Crystals & other Potassium Feldspar Matrix Specimens
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Microcline and Orthoclase Mineral Specimens & Crystals

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Microcline with Green Tourmalines


Code: micm102
Microcline Specimen Dimensions: 3.5" x 2.4" x 1.2"
Found at Itinga, Brazil
Price: $41.50
This natural specimen of raw microcline was discovered in a pegmatite at Itinga, Brazil. It is a partially terminated microcline crystal with some white clay minerals and several dark green tourmaline crystals embedded in its upper surface as shown. See also a full view of this microcline mineral specimen.

Muscovite on Microcline

This unique item is sold.
Code: micm103
Microcline Specimen Dimensions: 5" x 2" x 1.5"
Found at Itinga, Brazil
Price: $48.50
This natural specimen of microcline feldspar was discovered in a pegmatite at Itinga, Brazil. It has a 2.4 inch long muscovite mica crystal on a matrix of microcline feldspar. See also a full view of this natural specimen of microcline with muscovite.

Large Microcline Decorator Crystal Specimen, 106.7 Lbs!


Code: micm105
Natural pegmatite decorator specimen weighing 106.7 Lbs
Microcline Decorator Specimen Dimensions: 19" x 11" x 8.5"
Found at Itinga, Brazil
Price: $2825.00
This natural pegmatite decorator specimen was discovered in a pegmatite at Itinga, Brazil. It is a large beige color partially terminated microcline feldspar crystal with golden muscovites and some white blade-like cleavelandite crystals on its upper surface. See a side view of this large large microcline decorator crystal specimen. See also a back side view of this large large microcline decorator specimen.

6.5 inch Albite Feldspar Specimen with Microcline


Code: albm156
Natural pegmatite mineral specimen weighs 1.3 pounds
Pegmatite Specimen Measurements: 6.5" long x 3.5" x 2.5"
Found in a pegmatite in Minas Gerais, Brazil
Price: $54.95
The matrix of this natural pegmatite mineral specimen is a flesh colored microcline crystal section that is intergrown with a mass of snowy white blade-like albite crystals (albite feldspar with blade-like form is known as cleavelandite).

Cleavelandite with Microcline


Code: albm203
Natural cleavelandite (albite feldspar) rough specimen weighing 0.9 pounds
Cleavelandite Specimen Measurements: 5.5" x 4.2" x 1.8"
Found in a pegmatite in Minas Gerais, Brazil
Price: $64.50
This unique pegmatite specimen has colorless semi-transparent blade-like cleavelandite crystals (a crystalline variety of albite feldspar) on pale beige microcline feldspar. There also is a small amount of golden muscovite mica crystals.

Large Cleavelandite with Microcline Decorator Specimen


Code: albm165
This natural pegmatite specimen weighs 25.6 Lbs
Cleavelandite on Microcline Specimen Dimensions: 11.5" tall x 9" wide x 6.1" deep
Mined at Divino Laranjeiras, Brazil
Price: $810.00
This beautiful decorator specimen stands up nicely in the position shown. It has rounded masses of blade-like white cleavelandite crystals attached to a large partially terminated microcline crystal. This unique specimen is completely natural with no treatments of any kind. This beautiful pegmatite specimen is very showy with the brilliant white clevelandite and the beige color microcline feldspar. There are hundreds of small muscovite mica crystals attached on the backside. See also a back view of this pegmatite decorator specimen of cleavelandite with microcline.

21 inch Albite (cleavelandite) Decorator Mineral Specimen


Code: albm163
This natural pegmatite specimen weighs 30.8 Lbs
Cleavelandite on Microcline Specimen Dimensions: 21" long x 10.8" wide x 3.2" thick
Mined at Divino Laranjeiras, Brazil
Price: $1100.00
This large decorator specimen has rounded masses of blade-like white cleavelandite crystals on a partially terminated microcline plate. It is completely natural with no treatments of any kind. This beautiful pegmatite specimen is very showy with the brilliant snowy white cleavelandite on top of the beige color microcline feldspar. See also a full view of this pegmatite decorator specimen of cleavelandite on microcline.
 


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To see more microcline photos, just select another item category from the table below. For additional information on microcline feldspar, see our microcline feldspar information page.To see photos of another mineral variety, select any item category link in our Mineral Inventory & Factsheet Index.

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Last Updated: June 19, 2020
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