Rocks Set of 20 STEM Lab Manufacturer,Supplier and Exporter in India

Product Code : SCL-MH-12486

The Rocks Set of 20 STEM Lab, designed and prepared by Educational Instrument India, is a foundational lithological collection curated explicitly for comprehensive hands-on instruction in geology, earth science, and physical geography. This curriculum-vetted kit serves as an invaluable classroom aid, enabling students to explore the petrological properties, texture modifications, and formation mechanics of the Earth's crust without relying on simulated or schematic models.

Unlike generic or polished rock collections, this scientific setup presents raw, field-collected rock formations that feature pristine structural facets, internal grain variations, and genuine matrix attributes. By offering direct diagnostic interactions, the kit gives students the tools to systematically classify samples into the three primary genetic rock branches: Igneous (volcanic crystallization), Sedimentary (strata compaction and lithification), and Metamorphic (re-crystallization under intense heat and pressure parameters). It is an essential material kit for school lab modules, higher secondary STEM workshops, and undergraduate petrology courses across global distribution channels.

The 20-piece taxonomy is mathematically proportioned across the three primary geologic pillars to provide complete empirical diversity:

1. Igneous Rocks (Volcanic & Plutonic Formations)

Granite: Coarse-grained intrusive plutonic rock

Obsidian: Rapidly cooled volcanic glass

Pumice: Highly vesicular, low-density glassy rock

Basalt: Fine-grained extrusive mafic rock

Rhyolite: Felsic extrusive volcanic specimen

Gabbro: Coarse-grained intrusive mafic equivalent

Scoria: Dark, highly vesicular basaltic rock

1. Sedimentary Rocks (Clastic, Chemical, & Organic Strata)

Sandstone: Classic clastic silicate rock

Limestone: Calcium-carbonate rich chemical precipitate

Shale: Fine-grained fissile mudrock

Conglomerate: Rounded clast-bearing coarse sedimentary rock

Coquina: Clastic organic rock made of shell fragments

Chert: Microcrystalline silica or quartz variety

Rock Gypsum: Evaporite-based chemical sedimentary layer

1. Metamorphic Rocks (Foliated & Non-Foliated Varieties)

Marble: Non-foliated recrystallized carbonate matrix

Slate: Low-grade foliated metamorphic pelitic rock

Quartzite: Hard, non-foliated transformed quartz sandstone

Schist: Medium-grade foliated micaceous specimen

Gneiss: High-grade banded regional metamorphic formation

Anthracite: High-purity, metamorphic ultra-dense coal variety

2. Product Specifications

Manufactured and categorized under strict ISO 9001:2015 institutional tracking standards, this kit provides long-term laboratory resilience:

3. How to Use It (Step-by-Step Practical Lab Experiments)

The Rocks Set of 20 STEM Lab functions as an active experimental platform. Below are step-by-step instructions for running primary diagnostic lab protocols:

Textural Profile Evaluation: Place a selected sample (e.g., Granite or Basalt) under standard workspace lighting. Have students use the pocket magnifier to determine if the rock is Phaneritic (large visible crystals showing slow cooling) or Aphanitic (fine micro-grains signifying quick cooling).

Foliation vs. Non-Foliation Mapping: Isolate the Metamorphic subset. Direct students to visually check for parallel mineral banding patterns (Foliation) in Gneiss or Schist, compared to the uniform interlocking crystal structures (Non-Foliation) seen in Marble or Quartzite.

Clastic Grain Matrix Sizing: Examine the Sedimentary subset to contrast the structural differences between Shale (invisible mud particles), Sandstone (gritty quartz sand grains), and Conglomerate (large, rounded pebbles bound in a mineral matrix).

Carbonate Acid Effervescence Testing: Place a single drop of dilute hydrochloric acid (HCl) on Limestone and Marble using a dropper pipette. Observe the instant chemical bubbling (carbon dioxide release) to confirm their carbonate mineral composition, and contrast this with the completely inert response from Sandstone or Granite.

Porosity and Density Profiling: Have students weigh a sample of Pumice and an identical volume of Obsidian. Drop both into a water bath to witness how Pumice floats due to its high vesicle volume, providing a clear lesson on the role of gas trapping in volcanic formations.

4. Frequently Asked Questions (FAQs)

Q1: Are the rock specimens inside the kit real or cast replicas?

A:Educational Instrument India guarantees that all 20 specimens are 100% genuine, raw rock formations extracted directly from authentic geological horizons. No cast plaster or synthetic materials are ever utilized.

Q2: How do students identify mixed up samples back to their slots?

A: Every specimen features a durable, micro-stamped color-coded number that pairs with the master geological ledger attached to the storage box lid, allowing for easy cleanup and self-directed testing.

Q3: Can these specimens withstand chemical acid testing over time?

A: Yes. The solid raw specimens are sized to handle repeated drop-scale chemical tests. After conducting an effervescence acid experiment, simply rinse the sample thoroughly under clean tap water and dry it before storing.

Q4: How does this product comply with Google’s E-A-T requirements for school purchasing?

A: All text, specifications, and instructional manuals included with our sets are written by credentialed petrologists and earth science educators. This guarantees that your lab data matches official scientific reference standards across educational boards.