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CIPW-norm calculation

Create Streckeisen diagrams directly from QAPF-data

Using this app, Streckeisen diagrams can now be created directly without having to calculate the CIPW norm first. Your QAPF data will be automatically normalized to 100 and you can directly download the diagram as a png file.

Enter your data for quartz, alkali feldspar, plagioclase and the foids (QAPF) below:

Sample 1 ⬤︎






Normalized






Sample 2






Normalized






Sample 3






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Sample 4






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Sample 5 ⬤︎






Normalized






Options

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The Streckeisen- (QAPF-) diagram

Download Streckeisen Diagram

Explanations

Q

The quartz content in wt% of the norm.

A

The orthoclase content in wt% of the norm.

P

The plagioclase (albite and anorthite) content in wt% of the norm.

F

The content of nepheline and leucite in wt% of the norm.


Index

Volcanic rocks

Plutonic rocks

1

Quartz Alkali-Feldspar Rhyolite

Quartzolite

2

Rhyolite

Quartz-Rich Granitoid

3

Dacite

Alkali-Feldspar Granite

3a

Plagidacite (Quartz-Andesite)

4

Quartz-Bearing Alkali-Feldspar Trachyte

Syeno-Granite

5

Quartz-Trachyte

Monzo-Granite

6

Quartz-Latite

Granodiorite

7

Basalt, Andesite

Tonalite

7a

Quartz-Bearing Latite-Andesite, Quartz-Bearing Latite-Basalt

7b

Andesite, Quartz-Basalt

7c

Latite-Andesit, Latite-Basalt

7d

Andesite, Basalt

7e

Foid-Bearing Latite-Andesit, Foid-Bearing Latite-Basalt

7f

Foid-Bearing Andesite, Foid-Bearing Basalt

8

Alkali-Feldspar Trachyte

Quartz-Bearing Alkali-Feldspar Syenite

9

Trachyte

Quartz-Syenite

10

Latite

Quartz-Monzonite

11

Foid-Bearing Alkali-Feldspar Trachyte

Quartz-Monzodiorite, Quartz-Monzogabbro

12

Foid-Bearing Trachyte

Quartz-Diorite, Quartz-Gabbro, Quartz-Anorthosite

13

Foid-Bearing Latite

Alkali-Feldspar Syenite

14

Phonolite

Syenite

15

Tephritic Phonolite

Monzonite

16

Phonolitic Basanite (Olivine > 10%), phonolitic Tephrite (ol < 10%)

Monzodiorite, Monzogabbro

17

Basanite (Olivine > 10%), Tephrite (ol < 10%)

Diorite, Gabbro, Anorthosite

18

Phonolitic Foidite

Foid-Bearing Alkali-Feldspar Syenite

19

Tephritic Foidite

Foid-Bearing Syenite

20

Foidite

Foid-Bearing Monzonite

21

Foid-Bearing Monzodiorite, Foid-Bearing Monzogabbro

22

Foid-Bearing Diorite / Gabbro / Anorthosite

23

Foid Syenite

24

Foid Monzosyenite

25

Foid Monzodiorite, Foid Monzogabbro

26

Foid Diorite, Foid Gabbro

27

Foidolite