造型石作品23

题名：《祁连山残雪》

石种：宣石

产地：安徽宣城（宁国）

规格： 35×11×8（cm）

物理性能：摩氏硬度：6-7度密度：2.64 -2.71g/cm ³

主要成分：黄褐色的沙积石、石灰石、石英石

主要特点：这方宣石形酷似祁连山脉，尤其以表现春末雪山景致取胜，宏伟挺拔，气势磅礴。石形稳定，峰、峦、岗、丘、壑、崖，以及远山、近景、高崖、积雪等要素具备，全景开阔，层次分明，细节生动。出神的气韵，山形雪景非常诱人。

Shape Stone Work No.23

Title: residual snow of Qilian Mountain

Stone species:xuan stone

Origin: Xuancheng(Ningguo), Anhui

Specification:35×11×8（cm）

Physical properties: Mohs hardness: 6-7 degrees density: 2.64 -2.71g/cm ³

Main ingredients: yellowish brown sand stone, limestone, quartzite

Main features: this xuan stone looks like the Qilian Mountains, especially the snow mountain scenery at the end of spring. It is magnificent and majestic. The stone shape is stable, with peaks, ridges, hills, gullies, cliffs, remote mountains, close range, high cliffs, snow and other elements. The panorama is open, the layers are clear, and the details are vivid.The spirit of trance, mountain shaped and snow scenery are very attractive.

宣石形成过程

宣石直接来源于地质运动，而不是地质演变，其石质细致坚硬、性脆，地质学上称石英岩。石英岩是天然产出的具有稳定外形的矿物集合体，是构成地壳和上地幔的物质基础。其在地表条件下由风化作用、生物作用和火山作用下，经水、空气和冰川等外力的搬运、沉积和成岩固结而形成。石英岩是以石英（SiO2）为主要成分的沉积变质岩石，颗粒细腻，结构紧密，硬度高，吸水较差。由于石英岩独特的晶体结构，使其呈现出缤纷华丽而又独特的颜色及纹理，有特殊的装饰效果。而其中白色显晶质石英，颜色洁白与雪花相近，山石迎光发亮，具有雪的质感，背光则皑皑露白貌如积雪覆于石上。

The process of xuan stone formation

Xuan stone is directly derived from geological movement rather than geological evolution. Its texture is delicate, hard and brittle. Geologically, it is called quartzite.Quartzite is a natural mineral aggregate with stable shape, which is the material basis of the crust and upper mantle. Under the surface conditions, it is formed by weathering,biological and volcanic processes, and is transported, deposited and diagenetic consolidated by external forces such as water, air and glacier. Quartzite is a sedimentary metamorphic rock mainly composed of quartz (SiO2), with delicate particles, compact structure, high hardness and poor water absorption. Due to the unique crystal structure of quartzite, it presents colorful, gorgeous and unique colors and stripes, and has a special decorative effect. Among them, the white crystalline quartz is similar to the snow in color.The mountain rocks are bright and have the texture of snow against the light and looks like snow covered on the stones in the poor light.