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Faceting Rough - A through B

Bytownite:

Bytownite rough cuts into a brilliant, light champagne colored stone.
$.15 to $.50/carat

This rare feldspar comes from Chihuahua, Mexico. Bytownite is an inexpensive and easy-to-cut material cuts a really beautiful stone.  Although bytownite usually contains schiller-like silk, it doesn't affect the brilliance of the finished stone.  When placed parallel to the table, the schiller can actually increase the dispersion.

For best performance, raise the pavillion angle 1/2 degree on designs set up in quartz angles.

 
Parcels of Medium-small size material @ $.15/carat
This is select material and most pieces are flawless.

Bytownite#1
11 piece parcel
125.45 carats
$18.82 SOLD

Bytownite#2
15 piece parcel
127.6 carats
$19.14 		Bytownite#3
15 piece parcel
114.15 carats
$17.12 		Bytownite#4
13 piece parcel
129.45 carats
$19.42 SOLD

Bytownite#5
13 piece parcel
121.45 carats
$18.22 SOLD

Bytownite#6
14 piece parcel
128.05 carats
$19.21 SOLD 		Bytownite#7
14 piece parcel
121.2 carats
$18.18 SOLD 		Bytownite#8
15 piece parcel
126.75 carats
$19.00 SOLD

Bytownite#9
16 piece parcel
127.5 carats
$19.13

Bytownite#10
15 piece parcel
126.05 carats
$18.91		 Bytownite#11
16 piece parcel
126.95 carats
$19.04 		Bytownite#12
14 piece parcel
126.6 carats
$18.99 SOLD
 
Parcels of Medium-large size material @ $.25/carat
This material has not been carefully selected, but most pieces are clean.

Bytownite#13
3 piece parcel
99.9 carats
$24.98

Bytownite#14
3 piece parcel
96.7 carats
$24.18 SOLD		 Bytownite#15
3 piece parcel
84.65 carats
$21.16 		Bytownite#16
3 piece parcel.
101.0 carats
$25.25

Bytownite#17
3 piece parcel
90.45 carats
$22.61

Bytownite#18
3 piece parcel
98.7 carats
$24.68 		Bytownite#19
2 piece parcel
85.9 carats
$21.48 		Bytownite#20
3 piece parcel
95.95 carats
$23.99

Bytownite#21
3 piece parcel
102.0 carats
$25.50

Bytownite#22
3 piece parcel
97.05 carats
$24.26		 Bytownite#23
2 piece parcel
93.1 carats
$23.28 		Bytownite#24
3 piece parcel
85.55 carats
$21.39
 
Individual Pieces of Large #1 quality material @ $.50/carat
This material is flawless, except for slight surface flaws.

Bytownite#25
Measures approximately 33.0mm x 18.4mm x 20.5mm. Best yield is a marquise or long pear.
124.2 carats
$62.10

 Bytownite#26
Measures approximately 30.5mm x 17.9mm x 15.4mm. Best yield is an oval.
126.05 carats
$50.42 SOLD 		Bytownite#27
Measures approximately 26.5mm x 14mm x 13mm. Best yield is an emerald.
68.5 carats
$34.25 SOLD 		Bytownite#28
Measures approximately 43mm x 30mm x 27mm. Best yield is a barion emerald.
313.3 carats
$156.65 SOLD

Bytownite#29
Measures approximately 30mm x 19mm x 7.5mm. Best yield is a pear.
75.75 carats
$37.88

Bytownite#30
Measures approximately 37mm x 17.2mm x 12mm. Best yield is a pear.
111.0 carats
$55.50		 Bytownite#31
Measures approximately 31mm x 18.8mm x 11.3mm. Best yield is a pear.
76.3 carats
$38.15 SOLD		 Bytownite#32
Measures approximately 27mm x 24.6mm x 10.7mm. Best yield is a round.
69.25 carats
$34.63 SOLD

Bytownite#33
Measures approximately 28mm x 26mm x 12.5mm. Best yield is a round.
73.75 carats
$36.88 SOLD

 Bytownite#34
Measures approximately 31.3mm x 27.2mm x 16mm. Best yield is a round.
128.5 carats
$64.25		 Bytownite#35
Measures approximately 22mm x 16mm x 11.3mm. Best yield is an oval.
49.45 carats
$24.73 SOLD 		Bytownite#36
Measures approximately 28.3mm x 16mm x 13.5mm. Best yield is an oval.
63.6 carats
$31.80 SOLD
 
Individual Pieces of Large #2 quality material @ $.30/carat
This material is mostly clean, but may be a little sleepy.

Bytownite#37
Measures approximately 25mm x 19mm x 14mm. Best yield is a square cushion.
112.7 carats
$33.81

Bytownite#38
Measures approximately 42mm x 23mm x 19mm. Best yield is an oval or pear.
196.35 carats
$58.91

Bytownite#39
Measures approximately 43mm x 23.5mm x 12mm. Best yield is two trillions & an emerald.
132.9 carats
$39.87		 Bytownite#40
Measures approximately 39mm x 28.5mm x 22mm. Best yield is one round or two emeralds.
213.55 carats
$64.07

Bytownite#41
Measures approximately 22.5mm x 20mm x 13mm. Best yield is an oval or pear.
74.55 carats
$22.37

Bytownite#42
Measures approximately 31mm x 21mm x 14mm. Best yield is an emerald or oval.
114.8 carats
$34.44 		Bytownite#43
Measures approximately 32.5mm x 20.5mm x 15mm. Best yield is a pear.
99.15 carats
$29.75 		Bytownite#44
Measures approximately 24mm x 17.5mm x 12mm. Best yield is a pair of emeralds.
77.45 carats
$23.24

Bytownite#45
Measures approximately 31mm x 18mm x 13mm. Best yield is an kite or pear.
68.9 carats
$20.67

Bytownite#46
Measures approximately 28mm x 21mm x 16.5mm. Best yield is a rectangle cushion.
106.8 carats
$32.04 		Bytownite#47
Measures approximately 19mm x 19mm x 14mm. Best yield is a heart.
71.65 carats
$21.50		 Bytownite#48
Measures approximately 27mm x 17mm x 15.5mm. Best yield is a pear.
57.2 carats
$24.16

Natural:  Amethyst   Bytownite   Chrome Diopside   Chrysoberyl   Citrine   Garnet   Moldavite  Petalite   Quartz   Sapphire   Scapolite   Spinel   Tanzanite   Topaz   Tourmaline   Zircon 
Man-Made:  Sapphire   Cubic Zirconia   Quartz   Laser Gem / Glass   Emerald   Red Beryl   Alexandrite   Spinel   YAG 
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