Lexic.us

Definition of Pyrolusite

1. Noun. A mineral consisting of manganese dioxide; an important source of manganese.

Definition of Pyrolusite

1. n. Manganese dioxide, a mineral of an iron-black or dark steel-gray color and metallic luster, usually soft. Pyrolusite parts with its oxygen at a red heat, and is extensively used in discharging the brown and green tints of glass (whence its name).

Definition of Pyrolusite

1. Noun. (minerology) A dark coloured mineral, consisting of manganese dioxide (MnO₂), that is an important ore of manganese. ¹

¹ Source: wiktionary.com

Definition of Pyrolusite

1. [n -S]

Lexicographical Neighbors of Pyrolusite

Literary usage of Pyrolusite

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Non-metallic Minerals: Their Occurrence and Uses by George Perkins Merrill (1910)
"Like pyrolusite, yet to be noted, this form of the ore is chemically a pure ... From pyrolusite it is readily distinguished by its increased hardness. ..."

2. The Non-metallic Minerals: Their Occurrence and Uses by George Perkins Merrill (1904)
"So far as reported, it is a rather rare form of manganese, though possibly much that has been set down as pyrolusite may be in reality ..."

3. The Non-metallic Minerals: Their Occurrence and Uses by George Perkins Merrill (1904)
"Like pyrolusite, yet to be noted, this form of the ore is chemically a pure ... From pyrolusite it is readily distinguished by its increased hardness. ..."

4. The Non-metallic Minerals: Their Occurrence and Uses by George Perkins Merrill (1910)
"Like pyrolusite, yet to be noted, this form of the ore is chemically a pure ... From pyrolusite it is readily distinguished by its increased hardness. ..."

5. An Introductory Course of Quantitative Chemical Analysis: With Explanatory by Henry Paul Talbot (1908)
"From the corrected volume of the solution required, calculate the amount of oxalic acid undecomposed by the pyrolusite ; subtract this from the total ..."

6. Laboratory Methods of Inorganic Chemistry by Heinrich Biltz, Wilhelm Biltz (1909)
"The reaction between aluminium powder and pyrolusite is so violent as to be almost explosive; it is better therefore to transform the pyrolusite first into ..."

7. Laboratory Methods of Inorganic Chemistry by Heinrich Biltz, Wilhelm Biltz (1909)
"The reaction between aluminium powder and pyrolusite is so violent as to be almost explosive; it is better therefore to transform the pyrolusite first into ..."

8. A Text-book of Quantitative Chemical Analysis by Gravimetric, Electrolytic by John Charles Olsen (1916)
"Determine the percentage of MnO, in the same or another sample ot pyrolusite as follows: 0.870 gram of the finely powdered and dried material is weighed out ..."

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