Ellensburg Blue Agate / 14.95 carats / One of the more expensive agates, Ellensburg Blue is often faceted. It reportedly has a hardness (Mohs 7.5 to over 8) exceeding normal quartz. This material originates in the State of Washington, and is fairly rare.
Quartz var. Carnelian from Stirling Brook, Watchung, Somerset County, New Jersey
Chalcedony var. Carnelian / Stirling Brook ("Carnelian Creek"), Watchung, New Jersey
Gastropod "Chalcedony (Var: Agate)" | #Geology #GeologyPage #Fossil Locality: Fruita Mesa Co. Colorado USA Dimensions: 5 mm x 6 mm x 6 mm Photo Copyright Michael Sommers Geology Page www.geologypage.com
Lake Superior Agate. What is an Agate? Agates are semi-precious gemstones that are a variegated form of chalcedony (pronounced kal-sed'-nee) which is silicone dioxide in the form of microscopic fiberous quartz crystals.
Premium quality Ellensburg blue agates, found only in central Washington.