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Granite importation
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The stone material for the most primitive building materials′ one kind, all over the world has the use since the ancient times. In recent years, the entire Taiwan′s stone material market grew year by year, except outside the limestone, the marble, the serpentine, take imported percentage of the granite as high, depth populace′s affection. Taiwan does not only produce the granite, but admires other national import completely. The each country′s granite stone material has the different characteristic. This charts to strive for substantial in content, after the widespread collection entire Taiwan market in sample of the general term granite stone material, including the tinted granite stone material′s granite, the flowered hillock diorite, the syenite, the ivernite and the popular name black or the deep color granite stone material′s gabbro, the diorite, the basalt and the diabase and so on, the collection scope contains includes widely, the granite definition is not same as the learning on, indicates specially sincerely in this.
Strict says, whether to have in petrology granite only then to be called the granite only, perhaps has the granitoid organization′s igneous rock then to be called the granite, not yet has the uniform view in its definition and the naming. Moreover, the granite stone material the classification which ties in the color also has the confusion phenomenon, its grain color also has in the respective trade to describe the naming.
Theoretically, on the science viewpoint, classification of the granite stone material should begin technically first, according to the igneous rock origin classification then basis mineral ingredient classification, finally depends on the physical property classification again, because classifies is too often detailed, sends is unable the practical application in the common entrepreneur. On the contrary, the present commercial classification naming too rough confusion, the reality does not have consideration of the scientific technical. Based on granite stone material′s in classification all sorts of questions, our bureau attempts proposed that systematized, the rationalization feasible method performs the preliminary classification; The classified side legal system on the color is, the texture or the organization, the particle size, the simplified rock systematic name, the habitat, the commercial name and so on item drafts is more scientific, the reasonable at the same time usable granite stone material preliminary classification naming method, so that the manufacturer easy to be able to apply.
(1) color department:
The color is the classification divides into the scarlet red, the pink, the iron grey, the black, the green, the brown, and other colors and so on seven kinds. The color department picks is surely polished face of by the rock sample under the white light felt that the response the main color is a datum. For example: In the commercial Brazilian king is red the scarlet red series, the Chinese Fujian′s powder flower hillock is the pink series, South Korea′s family even thin flower is the grayish white series, India′s black inscription on stone tablet and bronze is the black series, Australia′s green jadeite is the green series, Finland′s chrysanthemum hillock is the brown series.
(2) texture:
The texture (either organization) is refers to polished face of the rock sample in the naked eye or under the microscope observation, the mineral grain shape and the arrangement union way presents unique state. The main organization includes the equigranular, the porphyritic and the stripe shape three kind of organizations. And so on a grain of organization is refers to in the rock to compose particle size of the mineral pellet approximately to be equal; The Mottle structure is refers to in the rock the big crystallization mineral pellet to mount Yu Youxiao to crystallize the mineral pellet constitution the ground mass (aggregate); Because the stripe shape organization refers to in the rock certain minerals to have the directive arrangement, so that forms becomes the parallel arrangement or the belt-shaped structure slightly. Minority granite stone material, if will also create the stripe shape along some direction cutting the organization.
(3) particle size:
The particle size refers to in the rock size of the mineral crystallization pellet, microscope petrography general the igneous rock class mineral pellet is smaller than 1 millimeter particle size is called the fine grain, 1~5 millimeters particle sizes call the grain, is bigger than 5 millimeters to call the large grain. In the rock the mineral pellet′s particle size size may respond the mineral crystallizes the speed, it also has the relations with the rock strength. Generally is composed the rock by the homogeneous mineral ingredient, its fine grain often the rock strength comes compared to the large grain in a big way. Theoretically, the particle size definition is refers to the sole crystallization the size, generally in the rock the mineral pellet particle size is refers to the rock the average grain diameter which estimates under the microscope observation. But the particle size which the naked eye observes in the sample in kind is quite often big, is because a mineral pellet which identifies for the naked eye, under the microscope often is by several crystal particle size constitution. We should understand that this kind of phenomenon, understood under the actual sample and the microscope observes the particle size will have the discrepancy slightly. Moreover, in open country igneous rock sample pellet particle size classification criterion, also uses the wide definition; The fine grain refers to the pellet to be unable many take the naked eye identification (as < 0.1 millimeter), the grain refers to the pellet to be possible the naked eye identification but with difficulty to recognize the mineral (many are 0.1 to 1~2 millimeters), the large grain refers to the available naked eye discernment mineral pellet and the type (many are > 1~2 millimeters).
(4) simplified rock systematic name:
In Taiwan stone material market is often used to the majority of igneous rocks class is called the granite, so that and in petrology science naming difference is very large. By petrology viewpoint′s naming according to the granite stone material under the microscope observation, by the mineral type content percentage, the particle size, the organization which contains and so on classifies the naming. And takes auxiliary by the stone material after chemical analysis′s composition ingredient, enhances the naming the accuracy. This article uses the simplified petrology naming, uses Streckeisen(1967) and Ehler′s etc. (1982) QAPF chart igneous rock open country simplification classification differential class basis, take is suitable in the entrepreneur as the principle, provides naming which in the present trade uses or may classify.
(5) habitat:
In trade stone material naming common multi-crowns by geographic name, country′s name or origin geographic name, country′s name or origin geographic name, if the Fujian Xuanwu black comes from the Chinese Fujian, the Finnish chrysanthemum hillock comes from Finland, the Spanish rose pink color comes from Spain….And so on, so that and classification of life celebrated work contrast this article.
(commercial name)
At present Taiwan′s import granite stone material uses the commercial name in the stock market, performs the stone material entrepreneur always voluntarily to name, often the same type′s stone material actually has the different commercial name, has not been able to unify. For example the Indian big flower, the Indian thick flower and the Norwegian black pearl, the Ukrainian pearl are the same stone materials, therefore should add on the commercial name in the reasonable classified naming which belongs to, is advantageous for the contrast understanding.
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