Bismuth Crystals
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Mother Nature doesn't make Bismuth Crystals!  Bismuth is rarely found in nature in its elemental form. Of growing
interest in rock shops, however, are laboratory-grown bismuth crystals. These crystals, while not natural, are nonetheless
very interesting and sought after by the mineral hobbyist, collectors and rock hounds. The unique look that these crystals
offer is really something very special! Bismuth Pellets can also be a valuable addition to your collection of metals.

Bismuth was discovered in 1753 by Claude Francois Geoffroy. It is a very unusual and rare heavy metal that is solid at
room temperature. It is more rare than platinum, ranking number 69 out of the 75 listed rare elements found on Earth’s
crust. One very interesting thing about bismuth is that its liquid form is denser than its solid form. So as bismuth
crystallizes, its solid form floats above the liquid. This effect is only found in 3 other cases (water, gallium, and germanium).

Bismuth is a white, crystalline, brittle metal with a pinkish tinge. It occurs in a native state. Bismuth is the most
diamagnetic (repels magnets) of all metals. Its thermal conductivity is lower than any metal, except mercury. Bismuth has
a high electrical resistance normally and has the highest
Hall Effect (increase in electrical resistance when placed in a
magnetic field) of any metal. High-purity bismuth can form into distinctive and beautiful hopper crystals.

Bismuth crystals are man-made or laboratory “grown”. They are normally made from commercial 99.99% pure bismuth
pellets. Bismuth melts at 271.3 degrees Centigrade / 520.34 degrees Fahrenheit / 544.45 degrees Kelvin. Bismuth crystal
growth time is between 4 to 10 minutes as they form in a cooling bismuth melt. In its solid form, bismuth is incredibly
fragile. However, the crystals form to show perfect cleavage, making it tempting to handle and touch. The reason the
crystal structure is so fragile is because the rapid growth causes hollow stepped forms, called “hopper crystals”.

The iridescent coloring ranging through reds, blues, purples, gold and greens is due to a thin layer of bismuth oxide that
forms on the surface of the crystal as it cools. This is actually interference coloring, similar to the coloring you see on soap
bubbles and on oil slicks, and is based on how thick the oxide grows. The brightness and color intensity can vary from
sample to sample, depending on the quality and purity of the bismuth used. Some labs report that adding voltage from a
small battery helps control the coloring during its formation.
Museum Specimens
Bismuth to make crystals is usually found in the preferred form of 99.99% or better pure Bismuth discs or pellets
Item# 46BC08179611
9
3.5g Bismuth Crystal
Made in America
$35
.07
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(93.5 grams) and measures approximately
2.3 x 1.75 x 1.7" (59 x 44 x 43 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
10 gram pellets
16 gram pellets
25 gram pellets
All Photos taken in natural sunlight
Item# 47BC08173451
1
23.5g Bismuth Crystal
Made in America
$4
6.37
All Photos taken in natural sunlight
Item# 52BC07173670
6
1g Bismuth Crystal
Made in America

$22
.87
This stunning lab grown Bismuth Crystal is "Made in the USA" This Crystal
weighs
(61 grams) and measures approximately
2.2 x 1.6 x 1.3" (58 x 43 x 35mm)
Beautifully hoppered "apocalyptic meltdown" with a nice array of iridescent
coloring that changes color as viewing angle changes.
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(123.5 grams) and measures approximately
2.5 x 2.2 x 1.8" (64 x 57 x 46 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# C3BC09161150
37g Bismuth Crystal
Made in America
$24.05
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(37 grams) and measures approximately
1.3 x 1.8 x 1.2" (33 x 46 x 31 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 48BC08175261
1
30g Bismuth Crystal
Made in America
$4
8.75
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(130 grams) and measures approximately
2.4 x 2 x 1.8" (62 x 52 x 45 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 50BC08173660
5
3g Bismuth Crystal
Made in America
$1
9.89
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(53 grams) and measures approximately
1.8 x 1.3 x 1.25" (48 x 35 x 31 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# C6BC09161150
28g Bismuth Crystal
Made in America
$18.20
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(30 grams) and measures approximately
1 x 1.1 x 1" (25 x 29 x 27 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 51BC08178380
6
7g Bismuth Crystal
Made in America
$2
5.14
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(67 grams) and measures approximately
2.1 x 1.7 x 1.3" (54 x 43 x 35 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# D2BC09161150
32g Bismuth Crystal
Made in America
$20.80
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(32 grams) and measures approximately
1.3 x 1.2 x 1" (34 x 32 x 27 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# D3BC09161150
19.5g Bismuth Crystal
Made in America
$12.67
All Photos taken in natural sunlight
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA" This Crystal weighs (19.5 grams) and measures approximately
1.1 x 1.1 x 0.9" (30 x 29 x 24 mm) Beautifully hoppered with a nice array of iridescent coloring that changes color as viewing angle changes.
Item# 54BC07175231
1
06g Bismuth Crystal
Made in America
$3
9.75
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(106 grams) and measures approximately
2.7 x 1.8 x 1.2" (68 x 45 x 32 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 55BC07171051
1
20g Bismuth Crystal
Made in America
$4
5.00
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(120 grams) and measures approximately
2.8 x 2.2 x 1.8" (71 x 56 x 46 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight
Item# 49BC08175790
7
8g Bismuth Crystal
Made in America
$2
9.25
All Photos taken in natural sunlight
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(78 grams) and measures approximately
2.4 x 1.8 x 1.6  " (62 x 46 x 40 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 53BC07175790
7
8g Bismuth Crystal
Made in America

$29
.25
This stunning lab grown Bismuth Crystal is "Made in the USA" This Crystal
weighs
(78 grams) and measures approximately
2.4 x 1.6 x 1.1" (60 x 42 x 29mm)
Beautifully hoppered "apocalyptic meltdown" with a nice array of iridescent
coloring that changes color as viewing angle changes.
All Photos taken in natural sunlight
Item# 56BC07175711
9
4g Bismuth Crystal
Made in America
$3
5.25
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(94 grams) and measures approximately
2.5 x 1.7 x 1.6" (63 x 43 x 40 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight
Item# 57BC07173621
1
01g Bismuth Crystal
Made in America
$37
.87
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(101 grams) and measures approximately
2.8 x 1.9 x 1" (72 x 49 x 27 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(101 grams) and measures approximately
2.8 x 1.9 x 1" (72 x 49 x 27 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
Item# 58BC07178361
131g Bismuth Crystal
Made in America
$4
9.13
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(131 grams) and measures approximately
2.5 x 2.2 x 1.5" (65 x 58 x 39 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight
Item# 59BC07178331
10
7g Bismuth Crystal
Made in America
$40.13
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(107 grams) and measures approximately
2.4 x 2.1 x 1.4" (62 x 53 x 36 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight
Item# 60BC07170531
10
8g Bismuth Crystal
Made in America
$40.5
0
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(108 grams) and measures approximately
2.5 x 1.6 x 1.4" (66 x 41 x 36 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight
Item# 61BC07171070
5
6g Bismuth Crystal
Made in America
$2
1.00
This stunning lab grown Bismuth Crystal is "Made in the USA"
This Crystal weighs
(56 grams) and measures approximately
3 x 1.5 x 1.3" (76 x 38 x 35 mm)
Beautifully hoppered with a nice array of iridescent coloring that changes color as
viewing angle changes.
All Photos taken in natural sunlight