Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Natural XL Botryoidal Malachite Specimen x 1 From CongoPRODUCT DESCRIPTION This is an absolute Classic and Beautifully Formed Sparkling Crystalline XL Botryoidal Malachite Museum Specimen. 19. 6 kg of Gorgeous Balls of malachite in a large, very aesthetically pleasing bright green Botryoidal cluster formation. Over 40 cm wide and super shiny crystallization. A superb Specimen indeed! Too Beautiful for words. These rarely get down from Congo in this size or this perfect. A Centre Piece! These grow in
PRODUCT DESCRIPTION
This is an absolute Classic and Beautifully Formed Sparkling Crystalline XL Botryoidal Malachite Museum Specimen. 19.6 kg of Gorgeous Balls of malachite in a large, very aesthetically pleasing bright green Botryoidal cluster formation. Over 40 cm wide and super shiny crystallization. A superb Specimen indeed! Too Beautiful for words.
These rarely get down from Congo in this size or this perfect. A Centre Piece! These grow in pockets inside of open vugs/cavities . Copper Saturated Dolomite and Gangue material gets water logged and leaches through the ground (it rains a LOT on the Congo!) and drips Cu to form layers of Alkaline Copper (Malachite is 66% Cu). You can use Malachite to date an area Geologically from working out the precipitation rate and layer build up and counting the inner rings/layers. Lets hope nobody wishes to cut this one up!!
PRODUCT DATA
Locality = Kolwezi, Congo
Grade = A to AA Grade
Size = 413 x 300 x 175 mm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1298 reviews
Sort
Product Reviews
★★★★★ 5
A great addition to my Kindle library and a candidate to our Best Book Picks of 2025.
Format: Kindle
In setting the scene, Sangeet reminds us that, in the 1960s, Singapore was a struggling port city with limited natural resources and a rather tenuous future. It's hard to imagine but true. A strategic location in South East Asia. But such location meant little if it could not draw talent and capital to develop the infrastructure needed to grow, and here a deceptively simple and modular invention helped - the shipping container.
Harvard Professor Carliss Y. Baldwin, in her book Design Rules, shared with us how technology shapes organisations, indeed entire industries and societal structures, and so, as we envision and put a technology to use, who decide how organisations are shaped, who governs them, and where power and agency lies.
Yet AI is not just any other technology. We are not in full control of the technology and its power to learn, re-shape itself, and its impact on the nature of work therefore extends well beyond the individual using AI tools. This is where Sangeet takes us, into a hugely relevant and timely discussion of how AI presents immense opportunities as well as grave risks to the knowledge economy, as we know it today.
The questions raised are profound: among these...
- How would power shift from the current ways of work we are accustomed to, towards autonomous networks that make decisions and learn on their own (and faster than us)?
- Which organizational models best capture the shifts towards AI-supported value creation? and what path could such a transition follow?
- How would these impact the opportunities and risks for collaboration, within and beyond the enterprise?
A whole chapter is dedicated to strategy, and deservedly so. AI in itself does not provide a competitive advantage. Let’s not rush to appoint a Chief AI Officers or draw-up a so-called AI-strategy, for what is essentially a set of widely distributed and accessible technologies. We need a business strategy that acknowledges the deep impacts AI is and will continue to make. Before we rush to layer AI on top of org. processes and models that have served us in previous generations, let’s take an ecosystem-wide view and ask - where are we now? What is fundamentally changing, and Where can we harness its trends towards an advantage?
Having read Sangeet's book, my advice is this - seize the opportunity, invite others to the conversation and be open to new forms of power and control, as the organisations that win tomorrow are already experimenting in doing things differently today.
A great addition to my Kindle library and a candidate to our Best Book Picks of 2025.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2025
★★★★★ 5
Amazing Study Guide for Passing the Security+ Exam Quickly!
Format: Paperback
I recently used the CompTIA Security+ Get Certified Get Ahead: SY0-701 Study Guide to prepare for my Security+ exam, and I passed in just two weeks—a huge accomplishment for me! Here’s why this study guide was so helpful:
1. Clear and Concise Content
The book is well-organized and breaks down the material in a way that’s easy to understand, even if you’re new to security concepts. It covers everything you need for the SY0-701 exam, from network security to risk management and cryptography, in a clear, digestible format. It’s not overwhelming, and the explanations are straightforward.
2. Focused on Exam Objectives
What I really appreciated was how the guide is directly aligned with the exam objectives. It helps you focus on what’s important and ensures you're prepared for the exact topics that will be on the test. I didn’t waste time studying irrelevant material, and I felt confident on exam day.
3. Practice Questions and Exam Tips
The practice questions at the end of each chapter were incredibly useful. They gave me a feel for the types of questions I’d encounter on the actual exam, and reviewing the answers helped me solidify my understanding. The exam tips and tricks scattered throughout the book also helped me refine my test-taking strategies.
4. Comprehensive Coverage with Easy-to-Understand Examples
This guide provides not only the theory but also real-world examples that helped make abstract concepts easier to grasp. The examples helped me see how the material applied in actual IT environments, which made it easier to remember.
5. Great for Quick Study Sessions
I had a tight two-week timeline to study, and this guide was perfect for that. The chapters are concise enough to work through in short study sessions, and the material is presented in a way that’s easy to retain. I was able to go through the entire book and still have time to review key concepts before my exam.
Final Thoughts
If you’re looking to pass your CompTIA Security+ SY0-701 exam in a short amount of time, this study guide is an excellent resource. It helped me prepare effectively, and I passed the exam with confidence in just two weeks! Highly recommend it for anyone looking to get certified and get ahead in their career.
Pros:
Clear, concise explanations aligned with exam objectives
Practice questions and exam tips to reinforce learning
Real-world examples that make concepts easier to understand
Perfect for fast, focused study sessions
Helps you stay on track for the Security+ exam
Con:
Some sections could benefit from deeper dives for advanced learners, but it’s perfect for exam preparation
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2024
★★★★★ 5
Comprehensive, Clear, and Highly Effective!
Format: Paperback
CompTIA Security+ Get Certified is an excellent resource for anyone preparing for the Security+ exam. The material is thorough, well-organized, and easy to understand, making complex security concepts approachable. The practice questions and exam tips are especially helpful for building confidence and ensuring readiness. Whether you’re new to cybersecurity or looking to refresh your knowledge, this guide is a must-have for passing the exam and advancing your career!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2025
★★★★★ 5
🙌
Format: Paperback
Helped me studied for the cert and was brought up by prof. Messer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
Wow
Format: Paperback
Awesome read
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026