| name | cut-gemstone |
| locale | wenyan-lite |
| source_locale | en |
| source_commit | 82c77053 |
| translator | Julius Brussee homage — caveman |
| translation_date | 2026-04-19 |
| description | Cut gemstones using cabochon and faceting techniques. Covers rough assessment, orientation for optimal color and yield, dopping, cutting angles, and crown/pavilion geometry for standard brilliant cuts. Use when you have rough gemstone material to cut into a cabochon or faceted stone, planning cutting orientation for optimal colour or optical phenomena, setting up a cabbing or faceting machine, or selecting the appropriate cutting approach for a given material.
|
| license | MIT |
| allowed-tools | Read |
| metadata | {"author":"Philipp Thoss","version":"1.0","domain":"lapidary","complexity":"advanced","language":"natural","tags":"lapidary, cutting, faceting, cabochon, gemstones"} |
切寶石
自原料以凸圓面與刻面之技切寶石，涵原料評、方位規劃、固夾、研磨、刻面幾何。
適用時機
- 有原寶石料欲切為凸圓面或刻面之成石
- 須規劃切向以得最優之色、產率、或光現象
- 初立凸圓機或刻面機時
- 欲明標準圓明亮切之冠與亭角
- 為特料擇合宜之切法
輸入
- 必要：原寶石料（已辨種——見
identify-gemstone）
- 必要：切法決定：凸圓面或刻面
- 必要：目標形與約大小
- 選擇性：含鑽鋸片之修鋸
- 選擇性：含 80/220/600/1200/3000 目輪之凸圓機（供凸圓面）
- 選擇性：含索引齒、桅桿、盤組之刻面機（供刻面）
- 選擇性：固夾蠟或環氧、固夾棒、酒精燈
- 選擇性：標準校尺之範本（橢、圓、馬眼）
步驟
步驟一：原料評與安全察
切前先評原料。
Rough Assessment Checklist:
+--------------------+------------------------------------------+
| Factor | Assessment |
+--------------------+------------------------------------------+
| Species | Identified? (MANDATORY before cutting) |
| | Toxic dust risk? (check below) |
+--------------------+------------------------------------------+
| Fractures | Internal fractures that limit yield? |
| | Will the stone break during cutting? |
+--------------------+------------------------------------------+
| Colour zones | Where is the best colour concentrated? |
| | Can the cut centre the colour? |
+--------------------+------------------------------------------+
| Inclusions | Large inclusions that should be cut away?|
| | Silk for star stones? (orient for star) |
+--------------------+------------------------------------------+
| Size and shape | What finished shapes fit this rough? |
| | Calibrated size possible? |
+--------------------+------------------------------------------+
| Yield estimate | Approximate finished weight as % of rough|
| | Typical: 25-40% for faceting |
| | Typical: 40-60% for cabochons |
+--------------------+------------------------------------------+
SAFETY — TOXIC DUST MATERIALS:
These minerals produce hazardous dust when cut. Use wet cutting ONLY,
ensure ventilation, and wear an appropriate respirator:
- Chrysotile (asbestos serpentine) — NEVER cut dry
- Malachite — copper carbonate dust is toxic
- Cinnabar — mercury sulfide, extremely toxic
- Orpiment/Realgar — arsenic compounds
- Chrysocolla — copper silicate, moderate risk
- Tiger's eye (fibrous) — fine silica fibers
ALL stone cutting produces silica dust. Always use water cooling
and never grind or cut dry without a dust extraction system.
- 確認種之辨識（疑則先行 ）
