Q: Will the employees at the Northwell Health FCU branches change? A: There are currently no plans to change the employees at this branch. What phone number can I use to contact Northwell Health FCU? A: Please call us at 516-301-3040.
Volcano Types. Diamond Craters volcanic field consists of a 60 sq km area of basaltic lava flows and numerous cinder cones and maars located between the SE Oregon town of Burns and Steens Mountain.ock Types. Diamond Craters volcanic field consists of a 60 sq km area of basaltic lava flows and numerous cinder cones and maars located between the SE Oregon town of Burns and Steens Mountain.
Relevance. Rating Newest Oldest. Best Answer: The two main rock types in which diamond is formed are harzburgite and eclogite, both quite rare igneous rock types. Harzburgite is composed of olivine, bronzite (an orthopyroxene), and some pyrope (chrome-and magnesium-rich varieties).Harzburgitic diamonds contain inclusions of olivine, broinzite, and pyrope. Harzburgitic diamonds are more than 3 billion years old.Eclogite is a high pressure metamorphic rock composed of garnet (almandine-pyrope variety) and omphacite (a sodium-rich clinopyroxene).Source(s): http://www.gamineral.org/diamond.htm.arzburgitic diamonds contain inclusions of olivine, broinzite, and pyrope. Harzburgitic diamonds are more than 3 billion years old. Eclogite is a high pressure metamorphic rock composed of garnet (almandine-pyrope variety) and omphacite (a sodium-rich clinopyroxene). Source(s): http://www.gamineral.org/diamond.htm.