What gemstones are found during limestone mining?

Gemstones form inside limestone when water carrying dissolved minerals pools inside cracks or voids in the limestone, either seeping down from the surface or forced up from below by geothermal activity. The minerals in the water slowly crystallize out into gemstones. read more

Most of the minerals which form in limestones are semi-precious at best. Most precious gems are found in metamorphic and some igneous rocks. Typical mineral specimens found in limestones include: calcite. dolomite. fluorite. in some areas, galena, sphalerite, chalcopyrite and pyrite are found. read more

Limestone Gemstones & Minerals. The following is a list of Limestone gems and minerals listed in our database. Click the pictures to get full data, click the X to remove the gem from the list. read more

Most of the minerals which form in limestones are semi-precious at best. Most precious gems are found in metamorphic and some igneous rocks. Typical mineral specimens found in limestones include: calcite. dolomite. fluorite. in some areas, galena, sphalerite, chalcopyrite and pyrite are found. read more