Hausmannite

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Export map as:

Research this topic

Explore the main themes, entities and connections around Hausmannite. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Overview

Complex oxide Mixed oxide Manganese Di-Tri-valent

26 related topics

Image gallery

Wessels mine Kalahari Northern Cape Province Hotazel Northern Cape

7 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Birefringence: δ = 0.31
Category: Oxide mineral
Cleavage: Perfect
Color: Brownish black, grayish.
Crystal class: Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)
Crystal habit: Massive – granular – common texture observed in granite and other igneous rock. pseudo octahedral – crystals show an octahedral outline.

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Nodes36

Edges35

Triples32

Avg. degree1.94

Density0.055556

Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Hausmannite

Top relations

related to Image gallery · 6

Hausmannite → Hotazel, Kalahari, Northern Cape Province, South AfricaCrystal, South AfricaEttringite, Wessels

is a · 2

Hausmannite → brown to black metallic mineral with Mohs hardness of 5.5 and a specific gravity of 4.8.The type locality is Oehrenstock, complex oxide

Birefringence · 1

Hausmannite → δ = 0.31

Category · 1

Hausmannite → Oxide mineral

Cleavage · 1

Hausmannite → Perfect

Color · 1

Hausmannite → Brownish black, grayish.

Crystal class · 1

Hausmannite → Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)

Crystal habit · 1

Hausmannite → Massive – granular – common texture observed in granite and other igneous rock. pseudo octahedral – crystals show an octahedral outline.

Crystal system · 1

Hausmannite → Tetragonal

Diaphaneity · 1

Hausmannite → Opaque, transparent on thin edges

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

germany manganese oxide mineral tetragonal crystal formula mniimniii2o4 mno mn2o3 mn3o4 group crystals brown black mohs hardness specific gravity references

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
Hausmannite	Birefringence	δ = 0.31	1.00	infobox
Hausmannite	Category	Oxide mineral	1.00	infobox
Hausmannite	Cleavage	Perfect	1.00	infobox
Hausmannite	Color	Brownish black, grayish.	1.00	infobox
Hausmannite	Crystal class	Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)	1.00	infobox
Hausmannite	Crystal habit	Massive – granular – common texture observed in granite and other igneous rock. pseudo octahedral – crystals show an octahedral outline.	1.00	infobox
Hausmannite	Crystal system	Tetragonal	1.00	infobox
Hausmannite	Diaphaneity	Opaque, transparent on thin edges	1.00	infobox
Hausmannite	Formula	.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l…	1.00	infobox
Hausmannite	Formula mass	228.81 g/mol	1.00	infobox
Hausmannite	Fracture	Uneven – flat surfaces (not cleavage) fractured in an uneven pattern.	1.00	infobox
Hausmannite	IMA symbol	Hsm	1.00	infobox
Hausmannite	Luster	Submetallic	1.00	infobox
Hausmannite	Mohs scale hardness	5.5	1.00	infobox
Hausmannite	Optical properties	Uniaxial (−)	1.00	infobox
Hausmannite	Other characteristics	Anisotropism: Distinct, bireflectance: weak; O = light gray; E = dark gray.	1.00	infobox
Hausmannite	Refractive index	nε = 2.15, nω = 2.46	1.00	infobox
Hausmannite	Space group	I41/amd	1.00	infobox
Hausmannite	Specific gravity	4.7 – 4.84, average = 4.76	1.00	infobox
Hausmannite	Streak	Dark reddish brown	1.00	infobox
Hausmannite	Strunz classification	4.BB.10	1.00	infobox
Hausmannite	Tenacity	Brittle	1.00	infobox
Hausmannite	Twinning	Repeated twins on {112}	1.00	infobox
Hausmannite	Unit cell	a = 5.76 Å c = 9.46 Å; Z = 4	1.00	infobox
Hausmannite	is a	complex oxide	0.90	text
Hausmannite	is a	brown to black metallic mineral with Mohs hardness of 5.5 and a specific gravity of 4.8.The type locality is Oehrenstock	0.90	text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

Connections between topic areas Semantic bridges

Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

Min side: 3