The Program Principle and Application of Microscopic Identification of Minerals
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摘要: 计算机技术常应用到镜下鉴定光性矿物工作中,本文以Visual Basic为工具开发出用于镜下鉴定矿物的辅助分析程序,介绍了光性矿物鉴定程序的设计原理和使用方法,包括矿物属性分析及赋值、鉴定误差减小方法及其应用。在光性矿物镜下鉴定时输入所观察矿物全部或部分光学性质,通过程序计算与比较,显示出最可能的查询矿物。矿物检索以贵橄榄石为例,在输入正确光性矿物属性的前提下,可准确地得出鉴定结果,有效地提高了镜下矿物鉴定的效率和准确度;查询结果中配有详细图片和属性描述,可以进一步查询矿物的详细光学性质、成因产状及其他鉴定特征;此外鉴定分析程序也可以用于建立矿物信息数据库。
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关键词:
- 矿物鉴定 /
- 属性分析 /
- 数据库 /
- 程序设计 /
- Visual Basic
Abstract: The microscopic identification of minerals can often be improved with the use of computer technology. An auxiliary analysis program for the microscopic identification of minerals based on Visual Basic tools is described in this paper. Design methods and procedures of the program, including mineral properties analysis and digitization, identification error reduction methods are discussed. When using the application for determination of minerals, it is acceptable to input complete or part of the optical properties of query minerals during microscopic observation. Through calculation and comparison, final search results can match most query minerals. The application analysis results demonstrate the accuracy and efficiency for identifying query minerals. The program can also identify more mineral information, such as optical properties, the causes of the occurrence and identification characteristics. In addition, the program can be used to establish a mineral information database.-
Key words:
- mineral identification /
- attribute analysis /
- data base /
- software design /
- Visual Basic
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表 1 颜色属性分类及编号
Table 1. Classification and number of color attribute
单色 赋值 红色 5 褐色 6 绿色 7 紫色 8 蓝色 9 黄色 10 灰色 11 棕色 12 黑色 13 橙色 14 混合色 赋值 玫瑰红等 25 黄褐红褐灰褐 26 黄绿蓝绿等 27 灰紫色 28 铜蓝色 29 褐黄橙黄等 30 绿灰色 31 黄棕色 32 浅单色 赋值 浅红色 15 浅褐色 16 浅绿色 17 浅紫色 18 浅蓝色 19 浅黄色 20 浅灰色 21 浅棕色 22 浅黑色 23 浅橙色 24 浅混合色 赋值 浅玫瑰红等 35 浅黄褐红褐灰褐 36 浅黄绿蓝绿等 37 浅灰紫色 38 浅铜蓝色 39 浅褐黄橙黄等 40 浅绿灰色 41 浅黄棕色 42 表 2 矿物属性及其赋值
Table 2. Mineral attribute and value
矿物编号 名称 颜色 突起 解理 干涉色 消光 延长 双晶 光轴性 2V
角形态 001 贵橄榄石 2 5 2 8.5 2 3 1 3.5 84 3 002 普通辉石 16.5 5 5 7.5 1 3 2.5 3 60 2.5 003 普通角闪石 6.5 4.5 5 5.5 2 1 2.5 4 6.9 1.7 004 白云母 1 3 4 10.5 2 1 6 4 42.5 5 005 黑云母 6 4 4 11 2 1 6 4 17 5 006 石英 2 3 1 2.5 2 1 1 1 0 3 007 方解石 1 4.5 4 11 3 2 3 2 0 3 008 石膏 2 2 10 2.5 2 3 6 3 58 4 009 透长石 2 2 5 1.5 2 2 1 42 2 4 010 正长石 1 2 5 1.5 1 2 2 4 64 4 011 微斜长石 2 2 5 1.5 1 3 5 4 64 4 表 3 矿物属性分类及修正参数
Table 3. Classification of mineral attribute and correction parameters
镜下矿物
属性最大取值
max最小取值
min取值范围 标准化变换系数c
(基数100)权重/% 权重变换
系数μ拟合修正
系数p颜色 42 1 42 2.38 15 0.15 0.36 突起 6 1 6 16.67 10 0.1 1.67 解理 14 1 14 7.14 15 0.15 1.07 干涉色 20 1 20 5 15 0.15 0.75 消光 4 1 4 25 15 0.15 3.75 延长 3 1 3 33.33 5 0.05 1.67 双晶 5 1 5 20 5 0.05 1 光轴性 6 1 6 16.67 5 0.05 0.83 2V角 90 0 90 1.11 5 0.05 0.056 形态 20 1 20 5 10 0.1 0.5 -
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