مخدشه الأسود

English translation: black streak

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Arabic term or phrase: مخدشه الأسود
English translation:black streak
Entered by: Arabic & More

05:36 Jan 8, 2017
Arabic to English translations [PRO]
Science - Chemistry; Chem Sci/Eng
Arabic term or phrase: مخدشه الأسود
يتميز المعدن عن غيره من معادن المنجنيز يمخدشه الأسود وصلادته المنخفضة واحتوائه على كمية صغيرة من الماء.
Arabic & More
Jordan
black streak
Explanation:
مخدش = streak

Source: http://www.marefa.org/index.php/مخدش


Mineralogy The color of the fine powder produced when a mineral is rubbed against a hard surface. Used as a distinguishing characteristic.

Source: http://www.thefreedictionary.com/streak


Almost every mineral has an inherent streak color, no matter what color the actual mineral is. For example, Calcite occurs in many different colors, shapes, and varieties. But every single variety of Calcite has a white streak. A streak is useful in distinguishing two minerals with the same color but different streak. A good example is distinguishng Gold (yellow streak), and Chalcopyrite (black streak).

Source: http://www.minerals.net/resource/property/streak.aspx
Selected response from:

Nermeen Yousry
Egypt
Grading comment
Thank you for your help and research.
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1black streak
Nermeen Yousry
4Black Scratch
Sherif Ramadan


  

Answers


9 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5

28 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
black streak


Explanation:
مخدش = streak

Source: http://www.marefa.org/index.php/مخدش


Mineralogy The color of the fine powder produced when a mineral is rubbed against a hard surface. Used as a distinguishing characteristic.

Source: http://www.thefreedictionary.com/streak


Almost every mineral has an inherent streak color, no matter what color the actual mineral is. For example, Calcite occurs in many different colors, shapes, and varieties. But every single variety of Calcite has a white streak. A streak is useful in distinguishing two minerals with the same color but different streak. A good example is distinguishng Gold (yellow streak), and Chalcopyrite (black streak).

Source: http://www.minerals.net/resource/property/streak.aspx

Nermeen Yousry
Egypt
Native speaker of: Arabic
PRO pts in category: 4
Grading comment
Thank you for your help and research.

Peer comments on this answer (and responses from the answerer)
agree  Ibrahim Badr
4 hrs
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