Today I carried two pocket rocks: a tumble-polished Agni Gold Danburite from the Uluguru Mountains in the Morogoro Region of Tanzania, and a raw piece of Golden [Yellow] Labradorite [Bytownite] from the Dorado Mine, in Casas Grandes, Chihuahua, Mexico.
🌈Likely influenced by my artistic side, I honestly don’t have a favorite color! If I was forced to choose one, I would probably say, rainbow (because I love all the colors!) So far, this week, it seems that I’ve been attracted to yellow minerals. I have loved the color yellow since I was a child, and I’ve associated it as being cheerful and vibrant. I like that the two stones I carried today, are different shades of yellow. The rarest of the two, is my Agni Gold Danburite which has a very lively saturation of bright yellows, while my Yellow Labradorite is more in the “gold” spectrum. Both of these specimens have been in my collection for over seven years! 💛💛
According to #wikipedia, "[Danburite] has a Mohs hardness of 7 to 7.5 and a specific gravity of 3.0. The mineral has an orthorhombic crystal form. It is usually colourless, like Quartz, but can also be either pale yellow or yellowish-brown. It typically occurs in contact Metamorphic Rocks.
The Dana classification of minerals categorizes Danburite as a Sorosilicate, while the Strunz classification scheme lists it as a Tectosilicate; its structure can be interpreted as either.
Its crystal symmetry and form are similar to Topaz; however,Ttopaz is a Calcium Fluorine Bearing Nesosilicate. The clarity, resilience, and strong dispersion of Danburite make it valuable as cut stones for jewelry.
Golden Labradorite (also known as Bytownite) is a calcium rich member of the plagioclase solid solution series of feldspar minerals. Like others of the series, Golden Labradorite forms grey to white triclinic crystals commonly exhibiting the typical plagioclase twinning and associated fine striations.
Golden Labradorite is a rock forming mineral occurring in Mafic Igneous Rocks such as Gabbros and Anorthosites. It also occurs as Phenocrysts in Mafic Volcanic Rocks. It is rare in Metamorphic Rocks. It is typically associated with Pyroxenes and Olivine. The mineral was first described in 1835 and named for an occurrence at Bytown (now Ottawa), Canada."
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