Enby T-Shirt
$24
Boy T-Shirt
$24
Girl T-Shirt
$24
Description: Peridot is a gem-quality olivine and a silicate mineral. Its green color is dependent on the iron contents within the structure of the gem. It is the birthstone associated with August.
Peridot T-Shirt
$24
Description: A ruby is a pink to blood-red gemstone, a variety of the mineral corundum. The word ruby comes from ruber, Latin for red. It is the birthstone associated with July.
Ruby T-Shirt
$24
Workflow T-Shirt
$24
Description: Sapphire is a precious gemstone, a variety of the mineral corundum. It is the birthstone associated with the month of September.
Sapphire T-Shirt
$24
Description: Emerald is a gemstone and a variety of the mineral beryl, colored green by trace amounts of chromium and sometimes vanadium. It is the birthstone associated with the month of May.
Emerald T-Shirt
$24
Description: Opal is a hydrated amorphous form of silica. It is the birthstone of October.
Opal T-Shirt
$24
Description: Galena, also called lead glance, is the natural mineral form of lead(II) sulfide. It is the most important ore of lead and an important source of silver.
Galena T-Shirt
$24
Description: Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb2S3. It is the most important source for the metalloid antimony.
Stibnite T-Shirt
$24