The Mineral agate Agate is the banded form of the mineral Chalcedony, which is a microcrystalline variety of Quartz. Agate is the most varied and popular type of Chalcedony, having many varieties on …

Agate is a banded form of finely-grained, microcrystalline Quartz. The lovely color patterns and banding make this translucent gemstone very unique. Agates can have many distinctive styles and patterns, …

Detailed gemstone and jewelry information guide about the gemstone chalcedony, including blue, agate, jasper, carnelian, & chrysoprase.

Agate is a banded form of finely-grained, microcrystalline Quartz. The lovely color patterns and banding make this translucent gemstone very unique. Agates can have many distinctive styles and patterns, …

Carnelian is the red, orange, or amber variety of Chalcedony. Though often a solid color, it may also be banded, in which case it would be jointly classified as both Agate and Carnelian. Carnelian is an …

Chalcedony is not scientifically its own mineral species, but rather a form of Quartz in microcrystalline form. However, the name is an old name, and almost all mineral reference guides and collectors …

Sagenite Agate - The Mineral and Gemstone KingdomAgate with acicular or or pointed inclusion s of various minerals. These hair like formations are often arranged in fans or bursts.

Moss Agate - The Mineral and Gemstone KingdomChalcedony containing dense inclusion s of green Hornblende that cause the pattern to resemble moss. Moss Agate is technically not a true Agate as it …

Brecciated Agate - The Mineral and Gemstone KingdomAgate with broken fragments naturally cemented together; appears similar to breccia.

Interactive guide to hundreds of rocks and minerals.