| 释义 |
Definition of epidote in English: epidotenoun ˈɛpɪdəʊtˈepəˌdōt mass nounA lustrous yellow-green crystalline mineral, common in metamorphic rocks. It consists of a basic, hydrated silicate of calcium, aluminium, and iron. 绿帘石 Example sentencesExamples - All five rock samples are mineralogically simple, and comprise mainly muscovite, quartz and feldspar with accessory epidote and biotite.
- The greenish-colored vein averages 2-4 feet in width and is composed of epidote, quartz, and calcite.
- The sphalerite is associated with needle quartz, microcrystals of yellow-green epidote, and small spheres of a member of the chlorite group.
- Biotite and epidote occur as secondary minerals.
- Iron was remobilized and limned specular hematite, along with epidote, actinolite/tremolite, and andradite.
- Coarse - to fine-granular aggregates and massive epidote are relatively common.
- Biotite, epidote and clinopyroxene are also occasionally present, whereas garnet is virtually absent.
- In addition some also contain hornblende and epidote, the latter in part replacing biotite.
- These crystals are associated with chalcopyrite, galena, quartz, calcite, epidote, and chlorite.
- A variety of minerals were deposited in the hollow vesicles, including chlorite, prehnite, quartz, epidote, microcline, and pumpellyite.
- Attempts to separate hornblende from these diorites to date them failed utterly because of the intensive alteration of the hornblende to chlorite and epidote.
- Other minerals that are present in this zone include pyrite and epidote.
- Some calcareous veins contain epidote, titanite and apatite.
- Cementation is dominantly by chlorite, with epidote and zeolites also present as cement phases.
- Biotite is sometimes pseudomorphed by chlorite and epidote, and garnet is absent.
- Large titanite euhedra are abundant along with apatite and zircon, with allanite and epidote less so.
- Most such specimens are partially coated with a druse of calcite, epidote, and small, clear needle quartz crystals.
- Fine lustrous epidote crystals to 15 cm long have been collected at the Julie claim near Hawthorne, Mineral County, Nevada.
- The matrix is dominantly felsic, but also contains biotite, muscovite, epidote and titanite.
- Along the contact zone the limestones were recrystallized into a cloudy white, massive calcite containing grossular, epidote, magnetite, quartz, and tremolite.
OriginEarly 19th century: from French épidote, from Greek epididonai 'give additionally' (because of the length of the crystals). Definition of epidote in US English: epidotenounˈepəˌdōt A lustrous yellow-green crystalline mineral, common in metamorphic rocks. It consists of a hydroxyl silicate of calcium, aluminum, and iron. 绿帘石 Example sentencesExamples - Large titanite euhedra are abundant along with apatite and zircon, with allanite and epidote less so.
- Along the contact zone the limestones were recrystallized into a cloudy white, massive calcite containing grossular, epidote, magnetite, quartz, and tremolite.
- Biotite, epidote and clinopyroxene are also occasionally present, whereas garnet is virtually absent.
- Attempts to separate hornblende from these diorites to date them failed utterly because of the intensive alteration of the hornblende to chlorite and epidote.
- These crystals are associated with chalcopyrite, galena, quartz, calcite, epidote, and chlorite.
- Coarse - to fine-granular aggregates and massive epidote are relatively common.
- All five rock samples are mineralogically simple, and comprise mainly muscovite, quartz and feldspar with accessory epidote and biotite.
- Biotite is sometimes pseudomorphed by chlorite and epidote, and garnet is absent.
- Fine lustrous epidote crystals to 15 cm long have been collected at the Julie claim near Hawthorne, Mineral County, Nevada.
- Other minerals that are present in this zone include pyrite and epidote.
- The sphalerite is associated with needle quartz, microcrystals of yellow-green epidote, and small spheres of a member of the chlorite group.
- The matrix is dominantly felsic, but also contains biotite, muscovite, epidote and titanite.
- In addition some also contain hornblende and epidote, the latter in part replacing biotite.
- Iron was remobilized and limned specular hematite, along with epidote, actinolite/tremolite, and andradite.
- The greenish-colored vein averages 2-4 feet in width and is composed of epidote, quartz, and calcite.
- Biotite and epidote occur as secondary minerals.
- Most such specimens are partially coated with a druse of calcite, epidote, and small, clear needle quartz crystals.
- A variety of minerals were deposited in the hollow vesicles, including chlorite, prehnite, quartz, epidote, microcline, and pumpellyite.
- Cementation is dominantly by chlorite, with epidote and zeolites also present as cement phases.
- Some calcareous veins contain epidote, titanite and apatite.
OriginEarly 19th century: from French épidote, from Greek epididonai ‘give additionally’ (because of the length of the crystals). |