Tag Archives: Chemistry

ML300 Staurolite

Code:ML300 名稱 十字石Name   Staurolite化學公式   Fe2+2Al9O6(SiO4)4(O,OH)2Chemical Formula   Fe2+2Al9O6(SiO4)4(O,OH)2莫氏硬度   7-7.5Mohs scale of Hardness   7-7.5描述 十字石是島狀結構硅酸鹽礦物,它因有一個奇特的十字外形而得名。十字石又硬又脆,具有暗淡的光澤,一般為暗褐色。罕見的透明十字石可當作寶石。因為它的形狀,人們常用它製成裝飾品。Description Staurolite is a reddish brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe2+2Al9O6(SiO4)4(O,OH)2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium.小挑戰 你知道嗎? 十字石因形成短稜柱狀晶體,且通常會形成十字型的雙晶故得名,透明的十字石很稀有,一般來說不透明且十字型的十字石經常被用作護身符以及西方的宗教珠寶Challenge Do you know? Because of it’s Short prismatic crystals , and cross-shaped double crystals…

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ML299 Stichtite/ Serpentine

Code: ML299 名稱   碳鎂鉻礦/蛇紋石Name   Stichtite/ Serpentine化學公式   Mg6Cr2CO3(OH)16•4H2O/ (Mg, Fe)3Si2O5(OH)4Chemical Formula   Mg6Cr2CO3(OH)16•4H2O/ (Mg, Fe)3Si2O5(OH)4莫氏硬度   1.5 – 2Mohs scale of Hardness   1.5 – 2描述   它的顏色範圍從粉紅色到淡紫色到深紫色。 其光澤為蠟狀至樹脂狀,條紋為淡淡的淡紫色至白色,並且其透明性是透明Description   Its colour ranges from pink through lilac to a rich purple colour. Its Lustre is Waxy to resinous and its streak is Very pale lilac to white and the Diaphaneity of it is that it is transparent  小挑戰   我們在哪裡可以找到這塊石頭? 它在Zeehan的西海岸先驅博物館中展出。 唯一的輝石蛇紋石商業礦位于輝石山上。  Challenge   Where can we find this stone? It is exhibited…

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ML298 Ulexite

Code: ML298 名稱  鈉硼解石  Name Ulexite      化學公式 NaCaB5O6(OH)6•5H2O  Chemical Formula NaCaB5O6(OH)6•5H2O    莫氏硬度  2.5  Mohs scale of Hardness 2.5  描述  鈉硼解石與礦物硼砂一起發現,由於水在間歇性湖泊普拉亞斯中的蒸發而直接沉積在乾旱地區。鈉硼解石的顏色為白色或灰色至無色,透明至半透明的晶體。光澤柔滑。    Description Ulexite is found with the mineral borax and is directly deposited in arid regions from the evaporation of water in intermittent lakes called playas.The colour of ulexite is white or grey to colorless,transparent to translucent crystals. Its luster is silky.      小挑戰  我們可以在哪裡找到?  在美國,智利和哈薩克斯坦都可以找到這種石頭。    Challenge  Where is it found?  This stone is found in the USA, Chile and…

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ML297 Hubeite

Code: ML297 名稱 `紅矽鈣錳石Name Hubeite化學公式 Ca2 Mn2+, Fe3+ (Si4O12)(OH) •2H2OChemical Formula Ca2 Mn2+, Fe3+ (Si4O12)(OH) •2H2O莫氏硬度 5.5Mohs scale of Hardness      5.5描述 顏色: 淺褐色條紋: 橙棕色光澤: 玻璃    Description Color: pale brown Streak; Orange-brown Luster:  Vitreous小挑戰 `紅矽鈣錳石在什麼時候被審批? 2000    Challenge: What is the approval year of hubeite? In the year 2000 Reference 1. https://en.wikipedia.org/wiki/Hubeite 4A Olivia Wu 32 19/4/2021

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ML296 Brochantite/ Dolomite

Code: ML296 名稱   水膽礬/ 白雲石Name   Brochantite/ Dolomite化學公式   Cu4SO4(OH)6/ (CaMg)(CO3)2Chemical Formula   Cu4SO4(OH)6/ (CaMg)(CO3)2莫氏硬度   3.5-4Mohs scale of Hardness   3.5-4描述   鈣鈦礦和白雲石的顏色為白色,灰色,帶紅色的白色,棕白色,灰色,綠色,翡翠綠色,黑色。它的條紋是淺綠色和白色。黃銅礦和白雲石的光澤是玻璃質的。硬硼鋅礦和白雲石是脆性的,非常脆性斷裂,產生小的貝殼狀碎片。Description   The color of Brochantite and Dolomite is White, Gray, Reddish white, Brownish white, Gray, Green, Emerald green, Black. The streak of it is pale green and white. The luster of Brochantite and Dolomite is Vitreous. Brochantite and Dolomite is Brittle, very brittle fracture producing small, conchoidal fragments.小挑戰   我們在哪裡可以找到這塊石頭? 可以在美國亞利桑那州科科尼諾縣大峽谷的礦中找到這塊石頭。Challenge   Where can we find this stone? The stone…

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ML295 Siderite/ Tetrahedrite/ Chalcopyrite

Code: ML295 名稱   菱鐵礦/ 黝銅礦/ 黃銅礦Name   Siderite/ Tetrahedrite/ Chalcopyrite化學公式   FeCO3 / (Cu,Fe)12Sb4S13 / CuFeS2Chemical Formula   FeCO3 / (Cu,Fe)12Sb4S13 / CuFeS2莫氏硬度   3.75 – 4.25Mohs scale of Hardness   3.75 – 4.25描述   菱鐵礦是由碳酸亞鐵(II)組成的礦物。菱鐵礦的莫氏硬度為3.75-4.25,比重為3.96,有白色條紋和玻璃光澤或珍珠光澤。它的名字取自希臘語。它是一種有價值的鐵礦物質,因為它是48%的鐵,並且不含硫或磷。它是板狀晶體,通常是彎曲的-晶體狀到塊狀。顏色範圍從黃色到深棕色或黑色,後者歸因於錳的存在。Description   Siderite is a mineral composed of iron(II) carbonate. Siderite has Mohs hardness of 3.75-4.25, a specific gravity of 3.96, a white streak and a vitreous lustre or pearly luster. It takes its name from the Greek word. It is a valuable iron mineral, since it is 48%…

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ML294 Cavansite

Code: ML294 名稱 水矽釩鈣石Name Cavansite化學公式 Ca(VO)Si4O10•4H2OChemical Formula   Ca(VO)Si4O10•4H2O莫氏硬度 3-4Mohs scale of Hardness 3-4  描述 釩鐵礦的名字來源於其化學成分矽酸鈣釩,它是一種深藍色的含水鈣釩鈣矽酸鹽礦物,與各種沸石礦物一起作為玄武岩和安山岩中的次生礦物存在。 釩鐵礦於1967年在俄勒岡州的Malheur縣發現,是一種相對稀有的礦物。 它與甚至更稀有的礦物五方晶體多態。 它最常見於印度的浦那和火成的大省德干陷阱。Description Cavansite, whose name is derived from its chemical composition, calcium vanadium silicate, is a deep blue hydrous calcium vanadium phyllosilicate mineral, occurring as a secondary mineral in basaltic and andesitic rocks along with a variety of zeolite minerals. Discovered in 1967 in Malheur County, Oregon, cavansite is a relatively rare mineral. It is polymorphic with the even rarer mineral, pentagonite. It is most frequently found in…

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ML293 Blue Gibbsite

Code: ML293 名稱 藍色三水鋁Name Blue Gibbsite化學公式 Al(OH)3Chemical Formula Al(OH)3莫氏硬度 2.5-3Mohs scale of Hardness 2.5-3描述 這是最近一次發現,在圖森的一個房間裡有一些這種稀有材料的地板,這些材料起初(而且經常是)被誤認為是,而是這種稀有的氫氧化鋁物種菱鐵礦。實際上半晶石,您僅憑輕巧就可以看出來。但是沒有人懷疑任何這樣的礦物,所以它們一開始就以半變石的形式出售。現在,它們幾乎是不可能獲得的。Description This was a one-time recent find, where one room at Tucson had some flats of this rare material that was at first (and still often is) mistaken for Hemimorphite, but is instead this rare aluminum hydroxide species Gibbsite. You can tell actually just by the heft which is exceedingly lightweight. But nobody suspected any such mineral and so there they were, sold as Hemimorphite in the beginning. Now, they are…

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ML292 Fluorite

Code: ML292 名稱   螢石Name   Fluorite化學公式   CaF2Chemical Formula   CaF2莫氏硬度   4 (defining minerals)  Mohs scale of Hardness   4 (defining minerals)描述   螢石由氟化鈣組成,具有半透明或透明的外觀。有時,晶體可能是無色的,但有時也可能是黃色,粉紅色,綠色,藍色或紫色,或上述顏色的一些其他混合物。有時稱為螢石。石頭的名稱來自拉丁語“ fluo”,實際上意味著流動。Description   The fluorite is composed of calcium fluoride and possesses a translucent or transparent appearance. Occasionally, the crystal may be colorless, yet sometimes it may also be yellow, pink, green, blue, or purple, or some other mixtures of the aforementioned colors. This is sometimes known as the fluorspar. The name of the stone came from the Latin term…

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ML290 Mohs scale of mineral hardness testing kit

Code: ML290 名稱  摩氏硬度計及 十種礦物測試硬度工具Name Mohs scale of mineral hardness testing  kit化學公式 NAChemical Formula NA莫氏硬度  NAMohs scale of Hardness NA描述  莫氏硬度測試套件是一個工具套件, 可讓您獲得與所測試的礦物或岩石的 硬度有關的定性相對論。莫氏硬度測 試套件包括 8 個點-莫氏硬度等級分別 為 2、3、4、5、6、7、8 和 9。2 是 塑性點,3 是銅點,其他是經過精心 選擇的合金 以匹配莫氏指數礦物的硬 度。Description A Mohs Hardness Test Kit is a tool  set of picks allowing you to obtain a  qualitative relativity for the hardness  of the minerals or rocks you are  testing. The Mohs Hardness Test Kit  includes eight points – for Mohs  hardness scale of 2, 3, 4, 5, 6, 7,…

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