Five unusual rocks and minerals

Contents: Herkimer diamonds, Astrophylite, Labradorite specimens, rough gemstone blocks- Rainbow Calsilica and Synthetic Lapis Lazuli, Fire Agate nodules

HERKIMER DIAMONDS
Herkimer, New York

From a Herkimer, New York State mine. Double-terminated (points at both ends) diamond quartz crystals formed 500 million years ago under the Cambrian Sea (now NY State). Water formed pockets in deep-sea rock. Silica filled these "vugs" which grew these crystals, such a high quality quartz that the mine indeed calls these "diamonds". You can go and mine for yourself too!

#R-402

3.7 oz, 2 x 2 x 1-1/2"; 3.6 oz.

$35

#R-408

11 oz, 4-1/2 x 2-1/2 x 2-1/8" tall

$45

#R-408-B

6.4 oz, 3 x 2-1/2 x 1"

$40

#R-408-C

8.5 oz, 3-1/2 x 3 x 1-3/4"

$22

#R408-E

10.4 oz, 4-1/2 x 3-1/4 x 1-3/4" tall

$40

#R-408-I

7.8 oz, 3 x 2 x 1-1/2"

$45

#R-408-K

7.8 oz, 3-1/2 x 2 x 1-3/4"

$45

#R-408-L

4.8 oz

$30

#R-408-M

11.9 oz, 2-1/2 x 2-1/2 x 1-3/4"

$60

#R-408-O

7 pounds 1.8 oz, 8" x 4-1/2 x 4" tall (with this size, and the amount of vugs showing on the outside, the potential for more inside is very likely, if it is broken open!)

$135

#R-408-Q

5.3 oz, 3 x 2 x 1-1/2"

$30

#R-408-S

3 oz, 2-1/2 x 1-3/4 x 1-1/4"

$30

#R-408-U

10.8 oz, 3-1/2 x 2-1/4 x 1-3/8"

$45

#R-408-V

11.8 oz, 4 x 2-3/4 x 1-1/2"

$95

#R-408-W

9.9 oz, 4 x 2-1/2 x 1-3/8"

$85

#R-408-Y

11.4 oz, 3-1/2 x 2-1/2 x 1-3/4"

$45

#R-413-B

14.7 oz, 3-1/2 x 2 x 1-1/2"

$35

#R-413-C

1 lb 1 oz, 3 x 2-1/2 x 2"

$30

#R-413-G

100+ crystals! 1 lb 8.6 oz, 5-1/4 x 3-1/2 x 2"

$85

#R-413-I

1 pound 11.4 oz, 3-1/2 x 3-1/4 x 2"

$40

#R-413-J

Awesome piece! 1 lb 11.8 oz, 4-1/2 x 4-1/2 x 1-1/2"

$85

#R-413-K

Two awesome pockets! 1 lb 11.9 oz, 6 x 2-3/4 x 2"

$80

ASTROPHYLITE

From Eveslogechorr Mt. Knibina Massit, Kola, RUSSIA

A rare Titanium mineral with a rich copper-gold-rainbow colored crystal formation on a dark matrix stone. Well defined needle-like spray crystals. "Astrophylite" means "Star Leaf" in Greek. There are metaphysical applications for this special stone.

#R-440 Specimen is 2-3/4" long x 1-1/2" wide x 1" tall (four photos)

$69

Heidi's display piece is a slice polished on one side, natural on the other

display only

LABRADORITE specimens (ONE SIDE POLISHED)
Small, average 1-1/2 to 1-3/4" long
	#R457-2 $6 SOLD
Medium, average 2" long
#R457-7 $9		#R457-11 $9	#R457-24 $9
MED-LARGE, average 2-1/2" long
#R457-27 $12	#R457-31 $12	#R457-34 $12	#R457-35 $12
LARGE, Average 2-1/2 to 3" long.
#R457-37 $16		#R457-44 $16
EXTRA LARGE, average 3-1/8 to 4" long.
#R457-47 Flash on back too! $20

ROUGH GEMSTONE BLOCKS FOR LAPIDARY WORK
#R-490-1 Rainbow Calsilica lapidary block rough. Measures 4-1/2" long x 2-1/2" wide x 1-7/8" tallest. Valuable for cutting for cabochons for jewelry Weight: 1 pound 3.5 ounces $450 Rainbow calsilica is a man-made material created for the gemstone market from carbonate rock (aka calcite or powdered limestone) and plastic set in resin and colored by artificial coloring pigments. Since its first appearance in 2002, rainbow calsilica has been the subject of debate over whether it was naturally occurring or artificial, with some trying to pass it off as natural, claiming deposits were found in China, Brazil, Mexico and the Middle East. Rainbow calsilica gets its name from its layers of vibrant colors spanning the visible spectrum as well its composition of calcite and silica, found in quartz and a major component of sand. Cut into beads, cabochons and other jewelry-making components, rainbow calsilica is very desirable because of its bold, beautiful bands of colors. Mineral Information Calcium carbonate (calcite) plus silica, dye and plastic Chemical Composition Ca[CO3] SiO2 Color blue, green, yellow, orange, red, brown, black Hardness 3 to 4 (Mohs) Specific Gravity 1.88 - 1.92 Refractive Index 1.59 - 1.607 Clean rainbow calsilica jewelry with a soft dry cloth. Wash with warm, soapy water and a soft cloth or soft brush. Dry thoroughly. Because it is a carbonate, rainbow calsilica is sensitive to acid and can be easily scratched. Do not apply harsh cleaning products that can include bleach and acid. Do not use ultrasonic cleaners or steamers
#R490-2 Synthetic lapis lazuli rough block Measures 5" long x 2-1/2" wide x 1-1/4" tall Weight: 1 pound 5.6 ounces $140