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Alum
10" Eye Candy PINK ALUM Gemmy Geometric Octah...
$63.65$95.00
Lab-grown crystal specimens like this one are usually completely damage-free, which gives them an ad..
10.1" Pineapple-Cactus Shaped BabyPink ALUM w...
$63.65$95.00
This gorgeous alum crystal group is an attention grabbing baby pink color. The crystals are octahedr..
2.2" Lab Grown Purple Violet Octahedral ALUM ...
$40.20$60.00
When grown in mineral-rich solutions under carefully controlled conditions, alum forms pristine, ast..
2.6" Grape Purple ALUM CRYSTAL on Matrix Pris...
$43.55$65.00
Here is a lab-grown specimen of alum: a breathtaking specimen of ammonium aluminum sulfate NH4Al(SO4..
4" Lustrous Gemmy Emerald Green ALUM Crystals...
$60.30$90.00
This gorgeous alum crystal group is an attention grabbing emerald green color. The crystals are octa..
4" Saturated Crayon Green ALUM Crystals to 2....
$53.60$80.00
This lab-grown alum specimen features a bright crayon green color and sharp, brightly lustrous cryst..
4.1" Emerald Green WetLook Gemmy ALUM Crystal...
$67.00$100.00
Here is a gorgeous specimen of lab-grown alum, with sharp skeletal crystals that are colored a richl..
4.1" Green ALUM SharpGemmy Octahedral Crystal...
$40.20$60.00
The two large octahedral alum crystals on this piece are up to 2" across, and are gemmy and highly s..
4.2" GREEN ALUM Sharp Gemmy Skeletal Octahedr...
$53.60$80.00
There are 3 large and several small octahedral alum crystals on this lab grown specimen, the largest..