名稱 葡萄石Name Prehnite化學公式 Ca2Al(AlSi3O10)(OH)2Chemical Formula Ca2Al(AlSi3O10)(OH)2莫氏硬度 6-6.5Mohs Scale of Hardness 6-6.5描述 它是無色至灰色至黃色，黃綠色或白色。其光澤為玻璃色至珍珠色。它的條紋是白色的。  Description It is colorless to gray to yellow, yellow-green or white. Its luster is vitreous to pearly. Its streak is white.小挑戰 葡萄石主要來自哪裡？他們主要來自非洲，澳大利亞，加拿大，中國，德國，蘇格蘭，法國和美國。  Challenge Where does the prehnite mostly come from? They mostly come from Africa, Australia, Canada, China, Germany, Scotland, France and the United States.   Reference http://geologylearn.blogspot.com/2017/01/prehnite.html https://en.wikipedia.org/wiki/Prehnite By 4B Hung Man Ting Florence on 15 April 2021

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名稱   金雲母Name   Phlogopite化學公式   KMg3AlSi3O10(F,OH)2Chemical Formula   KMg3AlSi3O10(F,OH)2莫氏硬度   2-2.5Mohs scale of Hardness   2-2.5描述   通常，金雲母表現出不同的棕色陰影，具有玻璃或珍珠光澤。有時它的顏色也可能是紅棕色    Description   Usually, phlogopite exhibits different shades of brown, with vitreous or pearly shine. It may sometimes be in color reddish brown, as well.  小挑戰   我們在哪裡可以找到這石頭？   市場上也有晶形良好的晶體。這種情況的明顯發生可能包括加拿大，俄羅斯以及歐洲大陸的許多其他地方  Challenge   Where can we usually find this stone ? Well-formed crystals are also available in the market. The notable occurrences of this may include Canada, Russia, as well as in lot more localities in the…

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名稱 綠色鈣鉻榴石Names Uvarovite類別  Classification Mineral地質年代Geological Age化學組成, 鍵及結構Chemical composition, bonding and structure Uvarovite is a calcium chromium silicate with the chemical formula Ca3Cr2Si3O12. (Jay D. Bass, 2012) The atomic structure of uvarovite is based on a cubic structure, commonly as euhedral crystals, dodecahedra or trapezohedra. (Novak, G.A.; G.V Gibbs, 1971; Anastasia Chopelas, 2005)形成Formation Uvarovite was formed from contact metamorphic processes or hydrothermal processes. It has an optimum formation temperature of 1370 ± 10℃ under high pressure. (T. ISAACS, 1965)特性Properties Uvarovite is the only consistently green garnet…

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Code: ML037名稱玻璃隕石NameTekite化學公式High in SiO2(>65%)Chemical Formulahigh in SiO2（>65%)莫氏硬度0.5Mohs scale of Hardness0.5描述似曜岩／衝擊玻璃的外形多為球狀、啞鈴狀、液滴狀、紐扣狀和不規則形狀，內常含有氣泡空腔。陸地上找到的衝擊玻璃直徑一般幾毫米到十幾厘米，海洋沉積物中的微衝擊玻璃則有些只有40微米大小。外觀黑色、褐色或深綠色，半透明；易碎，斷口常為貝殼狀。DescriptionTektites are gravel-sized bodiescomposed of black, green, brown, orgray natural glass formed fromterrestrial debris ejected duringmeteorite impact. The term wascoined by Austrian geologist FranzEduard Suess, son of Eduard Suess.They generally range in size frommillimetres to centimetres.Millimetre-scale tektites are known asmicrotektites.小挑戰我們在哪裡可以找到這石頭？德國、澳大利亞、印度、中國、美國等地。ChallengeWhere can we find this stone?Germany, Australia, India, China,America… Reference https://en.wikipedia.org/wiki/Tektite by Yuen Cheuk Sze on 15 Apr 2021

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Code:ML036 名稱 臭蔥石Name   Scorodite化學公式   FeAsO4•2H2OChemical Formula   FeAsO4•2H2O莫氏硬度   3.5-4Mohs scale of Hardness   3.5-4描述   臭蔥石的英文名Scorodite係源自希臘語garlic-like，意指此種礦物加熱時會產生砷臭味。晶體多呈雙錐狀或板狀，偶見柱狀晶體，顏色以淺綠、藍綠或褐色居多，少數呈白色、黃色和深紫色，白色條痕。臭蔥石屬於含鐵的砷酸鹽礦物，其中鐵可能被少量的鋁所取代，若三氧化二鋁含量超過7.1％時，又稱之為鋁臭蔥石Description   The name Scorodite is came from Greek ‘garlic-like’,means that arsenic smell will be given out when heating the mineral. The crystals of scorodite are mostly in double cone or plate shape, sometimes columnar shape.The color is mostly light green, blue-green or brown, and a few are white, yellow and dark purple, with white streaks. The scorodite is an iron-containing arsenate mineral, in which iron may…

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名稱   電氣石Name   Apophyllite化學公式   K,Na)Ca4Si8O20(F,OH)•8H2OChemical Formula   K,Na)Ca4Si8O20(F,OH)•8H2O莫氏硬度   4.5 – 5Mohs scale of Hardness   4.5 – 5描述   電氣石的顏色為無色，白色，灰色，淺黃色，淺綠色，深綠色，粉紅色，紅色。 它的光澤是玻璃質的，乳白色的。 耐磨性也僅用於顯示。Description   The colors of Apophyllite have colorless, white, grayish, pale yellow, pale green, dark green, pink, reddish. And the luster of it is Vitreous, pearly on cleavage. Also the wearability is for display only.  小挑戰   我們在哪裡可以找到這塊石頭？   在許多玄武岩和輝綠岩採石場中，鬼臼石在世界範圍內都很普遍，儘管大型，結構良好的晶體僅限於幾個重要地區。 到目前為止，最大的晶體來自印度的Deccan Trap Rocks，在那裡生產沸石的玄武岩採石場中可以找到大量的晶體。  Challenge   Where can we find this stone?   Apophyllite is common worldwide in many basalt and diabase…

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名稱 沸石  Name  Zeolite    化學公式  Mx/n[(AlO2)×(SiO2)y].z H2O   y ≥ x  Chemical Formula  Mx/n[(AlO2)×(SiO2)y].z H2O   y ≥ x    莫氏硬度  4.5  Mohs scale of Hardness  4.5  描述  沸石相對較軟，可以壓碎成粉。沸石礦物最常見的有方沸石，菱沸石，斜發沸石，絲光沸石，鈉沸石，赤鐵礦，輝石和閃鋅礦。沸石的顏色為透明，白色，黃色，粉紅色，紅色。沸石的條紋是白色的。它的光澤是玻璃的。    Description  Zeolites are relatively soft and can be crushed and powdered. Most common zeolite minerals are analcime, chabazite, clinoptilite, mordenite, natrolite, heulandite, phillipsite and stilbite.The colour of zeolite is colorless, white, yellow, pink, red. The streak of zeolite is white. Its luster is vitreous.  小挑戰  沸石是如何形成的？ 由於鹼性和地下水之間的反應，天然沸石形成在火山岩上。    Challenge  How zeolite forms? Natural zeolites form on…

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Code: ML033 名稱 鉬鉛礦 `Name Wulfenite  化學公式 Pb[MoO4]Chemical Formula Pb[MoO4]  莫氏硬度 3Mohs scale of Hardness 3  描述 顏色: 橙黃色 條紋: 白色 光澤: 金剛烷  Description Colour: yellow-orange Streak:  White Luster: Adamantine, resinous    小挑戰   水鉛的用處?Challenge what is the use of Wulfenite? Ans: To make thin and tubular crystal,   Reference 1. https://en.wikipedia.org/wiki/Wulfenite 4A Olivia Wu 32 19/4/2021

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名稱   黑鎢礦Name   Wolframite化學公式   (Fe,Mn)WO4Chemical Formula   (Fe,Mn)WO4莫氏硬度   4.5Mohs scale of Hardness   4.5描述   黑鎢礦的顏色為棕黑色，鐵黑色。它的條紋是紅棕色。黑鎢礦的光澤是亞金屬的。黑鎢石是脆性的，通常通過玻璃和大多數非金屬礦物來顯示。Description   The color of Wolframite is Brownish black, Iron black. The streak of it is reddish brown. The luster of Wolframite is sub metallic. Wolframite is brittle which is generally displayed by glasses and most non-metallic minerals.小挑戰   我們在哪裡可以找到這塊石頭？ 石頭可以在哈薩克斯坦共和國的卡拉奧巴找到。Challenge   Where can we find this stone? The stone can be found in Kara-Oba, Republic of Kazakstan   Reference http://webmineral.com/data/Wolframite.shtml#.YHsC0BQzbvU By 4A 31 Woo Tsz Hin…

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