Larvikite Marble Labradorite AB facetted Round 4mm, 6mm, 8mm, 10mm, 12mm, 14mm- Wholesale Bulk or Single Strand!

Regular price $6.75

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*Material: Marble Labradorite
*Shape: Faceted Round

*Strand Length: 15.5 inches long
*Pieces per strand: Please refer below for sizes and count. All pieces are approximate pieces.
Round and Faceted Round
-4mm: 91 pieces
-6mm: 64 pieces
-8mm: 48 pieces
-10mm: 38 pieces
-12mm: 32 pieces
-14mm: 28 pieces

Roundel and Faceted Roundel
-4mm: 142 pieces
-6mm: 99 pieces
-8mm: 80 pieces
-10mm: 62 pieces

Gemstone Facts
Labradorescence is a side-effect of the molecular change which occurs in large crystal masses of anorthosite, producing an iridescent play of colors similar to adularescence. This labradorescence, or schiller effect, is the result of light diffraction within the lamellar intergrowths – fine, adjacent layers of the separate materials (lamellae) comprising the whole rock phase – created when conditions do not allow for sufficient diffusion to the materials' equilibrium composition.
The cause of this optical phenomenon is phase exsolution, or phase (state) instability, occurring in the Bøggild miscibility gap (An48-An58); under the appropriate heat and pressure conditions the separate molecular components will coexist but not mix to a solution, producing the phenomenon. [5][6][7][8]
Gemstone varieties of labradorite exhibiting a high degree of labradorescence are called spectrolite.
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Hole Sizes (Most beads...NOT ALL):

4mm: about 0.5 to 0.6mm
6mm, 8mm, 10mm, 12mm: about 1mm

NOTE: THESE HOLE SIZES APPLY TO MOST BEADS BUT NOT ALL OF THEM.